Matthew 16:13-20 meaning

The parallel gospel accounts of Matthew 16:13-20 are found in Mark 8:27-30 and Luke 9:18-21.

Matthew reports that Jesus and His disciples came into the district of Caesarea Philippi (v 13) after they crossed the Sea of Galilee from Magadan, and ascended the roughly 1800 foot rise in elevation over roughly 25 miles across land. The area of Caesarea Philippi featured Mt. Hermon and two of the Jordan River's three headwaters.

Caesarea Philippi the capital city of the district of Gaulanitis. Matthew chose to identify the district by the name of its capital city. By telling us they came into the district of Caesarea Philippi, Matthew might be telling the reader that Jesus and the disciples came to the outskirts of Caesarea Philippi, but did not fully enter. Since Matthew's primary audience is Jewish, and his goal is to demonstrate to them that Jesus is the promised Messiah, the Son of David, this might have been important, as an observant Jew would be defiled if they entered the grossly pagan areas of Caesarea Philippi.

When Israel first conquered the Promised Land, this region of Caesarea Philippi was included in the territory allotted to the half tribe of Manasseh (Numbers 32:39-42, Joshua 13:29-31). It was the northernmost territory in the Kingdom of Israel. Later Manasseh was renamed Dan.

But the culture of this region was long afflicted by Paganism. Even from the idolatrous time of Israel's judges (1100 B.C.), the city of Dan (near Caesarea Philippi) was renowned for its idol worship (Judges 18:6). Jeroboam (? - 909 B.C.), Israel's first king following its split from Judah built a golden calf in the city of Dan for the people to worship as God (1 Kings 12:28-31). Under King Ahab and his wife Jezebel it became a center of Baal worship.

Centuries later, during the Greek occupation (334 B.C. - 175 B.C.) the Greeks established the city of "Paneas" dedicated to their fertility god, Pan. Pan was often depicted as a debauched faun (half-goat, half-man).

At Paneas was a cave which, according to tradition, the Greeks named the gates of Hades. To them this meant the door or entrance into the underworld. It was called the gates of Hades because at the mouth of the cave was a whirlpool and a spring that flowed out of the cave's mouth. (This spring was one of the sources of the Jordan River.) It was at this site that they worshipped Pan.

Pan worship entailed a sacrifice and bestiality. Priests would offer a sacrifice to Pan by throwing a goat into the whirlpool at the mouth of the cave (the gates of Hades) from which the spring flowed.

Because of this gross paganism, an observant Jew would have to retain a sufficient distance, in order to avoid becoming defiled.

Sometime after the Roman conquest in 63 B.C., this territory was included in the kingdom of Herod the Great. He built a marble temple at the cave's entrance (the gates of Hades) and dedicated it to Caesar Augustus (who was the son and heir of the deified Julius Caesar). After Herod the Great's death, this region (along with the districts of Iturea and Trachonitis) were passed down to his son, Philip, who changed the name of Paneas to Caesarea Philippi, after Tiberius Caesar and himself.

This Philip also became the husband of his niece Salome (daughter of Herodias and another of Herod the Great's sons, also named Philip) who danced before her other uncle Herod the tetrarch, and was awarded the head of John the Baptist (Matthew 14:1-12). Philip added a separate temple dedicated to Jupiter (Zeus) and courtyards beside the gates of Hades to facilitate Pan worship.

The city later was renamed "Banias," the Hebrew version of Paneas, which is what it is called today. A visitor to the gates of Hades today can still see the ruins of the temples' foundations. They would notice hollowed-out niches carved in the mountain beside the cave where idols were displayed. Modern visitors would also see that the spring no longer flows from the mouth of the cave. This is because earthquakes have rerouted it since the time of Christ.

During Jesus's day, the culture of Caesarea Philippi was dominated by Roman Paganism. When they came into this district, Jesus had arrived at a place where He could teach His disciples undisturbed, and with an important teaching tool. It is unlikely that Jesus and the disciples would have gone to the temples located at Caesarea Philippi because it would have made them unclean. But it was in this district, perhaps on one of the several bluffs overlooking the gates of Hades that Jesus shared a most revealing conversation with His disciples about His identity and mission.

The topic turned to the Son of Man. In Jesus' day, the term Son of Man had three different meanings. It could be used as an expression for "someone," such as A son of man. It could be used as a reference to the prophet Ezekiel who used this label to describe himself ninety times. But it was also commonly understood to be a description of the Messiah. This use arose from Daniel's vision where he saw "One like a Son of Man… who was given… an everlasting dominion which shall not pass away and His kingdom is one which will not be destroyed" (Daniel 7:13-14).

Jesus asked His disciples, "Who do people say that the Son of Man is?" (v 13). The disciples gave Him four answers that the people said who the Son of Man was (v 13).

The first answer some said was John the Baptist. Herod the Tetrach had imprisoned John (Matthew 11:2) and recently put him to death (Matthew 14:1-12). John was Jesus' cousin. He was an eccentric whose strange appearance and fiery message called the people to "Repent, for the kingdom of heaven is at hand" (Matthew 3:2). John drew large crowds into the Judean wilderness (Matthew 3:5-6) and baptized them. The people who went to John were hoping he was "more than a prophet" (Matthew 11:9). They were hoping John was the Messiah. But John was not the Messiah (John 1:20). John was, however, the Messiah's forerunner who prepared the way before Him (Malachi 3:1).

Another answer that others gave for who the Son of Man was, was Elijah (v 14). Elijah (~900 B.C. - ~850 B.C.) was a famous prophet within Israel's Northern Kingdom during the reign of the wicked King Ahab. Elijah was known for performing powerful miracles in the name of God. These include prophesying the beginning and end of a severe famine that lasted three years (1 Kings 17:1 and 18:41), the raising of the widow's son (1 Kings 17:17-24), and striking the Jordan's waters to allow him to cross (2 Kings 2:8).

But his most famous miracle was his public showdown with 450 prophets of Baal when Elijah called upon God to send down fire to consume the water-soaked altar (1 Kings 18:19-40). The book of Kings also tells us that Elijah never died, "As they were going along and talking, behold, there approached a chariot of fire and horses of fire which separated the two of them. And Elijah went up by a whirlwind to heaven" (2 Kings 2:11).

The prophet Malachi, who foretold of a Messianic forerunner (Malachi 3:1) also prophesied that Elijah would return before the "great and terrible day of the Lord" (Malachi 4:5). The last three verses of the Old Testament have strong Messianic overtones and they mention Elijah by name.

"Remember the Law of Moses My servant, the statutes and ordinances which I commanded him in Horeb for all Israel. Behold, I am going to send you Elijah the prophet before the coming of the great and terrible day of the Lord. He will turn the hearts of the fathers back to their children and the hearts of the children to their fathers, so that I will not come and strike the land with complete destruction."
(Malachi 4:4-6)

This prophecy caused many Jews to look for Elijah's return as a sign that God's kingdom and His Messiah were coming. Others suspected that Elijah himself would be the Son of Man.

A third answer the disciples told Jesus about who the people identified as the Son of Man was the prophet Jeremiah (~650 B.C. — ~ 570 B.C.). Jeremiah was a prophet of the Lord who warned the kings of Judah of God's judgement. His fiery warnings against the kings of Judah were a source of constant friction (Jeremiah 1:18-19, 2:26; 8:1-2, 22:11-12) with the governing authorities. In return, Jeremiah was beaten and imprisoned (Jeremiah 37:15-16), thrown in a deep well (Jeremiah 38:6) and eventually exiled to Egypt (Jeremiah 42:1-7). When rulers of Judah ignored his counsel, God allowed Babylon to invade Judah, exile its captives, and bring an end to its evil ruler's reign.

Jeremiah is often known as the weeping prophet because he wrote the book of Lamentations, commiserating the catastrophic fall of Jerusalem to Babylon. But despite his many proclamations of impending judgement, he also prophesied hope and salvation (Jeremiah 29:10-14; 31:3-6; 32:37-42; 33:6-9).

Jeremiah also prophesied of the Messiah, calling the Messiah a "righteous Branch" or a "righteous Branch of David."

 "'Behold, the days are coming,' declares the Lord,
'When I will raise up for David a righteous Branch;
And He will reign as king and act wisely
And do justice and righteousness in the land.
'In His days Judah will be saved,
And Israel will dwell securely;
And this is His name by which He will be called,
'The Lord our righteousness.'"
(Jeremiah 23:5-6)

"'Behold, days are coming,' declares the Lord, 'when I will fulfill the good word which I have spoken concerning the house of Israel and the house of Judah. In those days and at that time I will cause a righteous Branch of David to spring forth; and He shall execute justice and righteousness on the earth. In those days Judah will be saved and Jerusalem will dwell in safety; and this is the name by which she will be called: the Lord is our righteousness.' For thus says the Lord, 'David shall never lack a man to sit on the throne of the house of Israel; and the Levitical priests shall never lack a man before Me to offer burnt offerings, to burn grain offerings and to prepare sacrifices continually.'
(Jeremiah 33:14-18)

It may have been because of Jeremiah's prophecies of judgment, deliverance, and the Messiah that some thought he might be the Son of Man.

Matthew summarized the disciples' additional answer(s) for who the people supposed the Son of Man was as one of the prophets (v 14).

After the disciples gave answers about who the people said the Son of Man was, Jesus asked them a more personal question about Himself.

Jesus asked them But who do you say that I am? (v 15). He was interested in who they thought He was.

The most outspoken of the disciples, Simon Peter, blurted out, "You are the Christ, the Son of the living God" (v 16). Peter believed Jesus to be more than a great teacher and miracle worker. He believed Jesus was the long-awaited Messiah.

Christ is the English word for the Greek term "Christos." Christos is the Greek word for the Hebrew term "Mashiach" which means "Anointed One." "Maschiach" is transliterated into English as "Messiah." So Christ means "Anointed One" means "Messiah." Peter had recognized that Jesus was the Messiah.

Given what Peter had seen Jesus perform, and how he had heard Jesus speak of Himself (Matthew 18:20; 11:1-19), it was hardly surprising that Peter believed Jesus was the Christ. What is surprising however is that Peter also identified Jesus as the Son of the living God (v 16).

Up to this point Jesus had hinted at this identity. Jesus had inferred that He was God (Matthew 9:2-6). Jesus had often referred to God as "your" or "our" Father as He did throughout the sermon on the Mount. But Matthew records Jesus as only occasionally calling God as "My Father" (Matthew 10:32; 11:26-27; 12:50). The Old Testament scriptures vaguely forecasts the truth that the Messiah would be God, such as (Jeremiah 23:2-3). But few if any seemed to have noticed this fact.

The title Son of Man also inferred divinity, when thought of in fulfillment of the Daniel 7 prophecy. Some Jewish sages recognized the possibility that the Messiah would be divine, and that might have stemmed from the period of oral tradition. But it hardly seemed to be a wide-spread view, as indicated by the disciples' response to Jesus's question as to who the people said He was.

But given their location near Caesarea Philippi, there is something else worth mentioning in Peter's confession. Peter called Jesus the Son of the living God (v 16). The adjective living strongly contrasts the empty paganism long associated with the region and its dead idols displayed in the temples and grotto beside the gates of Hades. The true God is not like the pagan gods. He is not dead. He is living.

Peter also may have intended another meaning when he described Jesus as the Son of the living God (v 16). He may have been contrasting Jesus with the man whose temple Herod the Great built and dedicated there—Caesar Augustus. The contrast was this: Jesus's Father is living. Caesar Augustus' adopted father; Julius Caesar was not. When Octavian, (Augustus' given name) assumed the title "Caesar Augustus" he claimed to be the son of the deified Julius Caesar. Once again Jesus is the Son of the living God (v 16). He was not, as Augustus claimed to be, son of the dead "god"—Julius Caesar.

Through Jesus's question and Peter's confession we see three important identities of Jesus. He is the Son of Man (Human). He is the Christ, the anointed Messiah (God's prophetic King who would restore Israel to everlasting glory). And He is the Son of God (God, Himself).

And Jesus said to him, "Blessed ["Makarios"] are you, Simon Barjona" (v 17). Peter's given name was Simon and Barjona which means "son of Jonah." The reason Jesus called Peter blessed was because flesh and blood did not reveal My identity to you, but My Father who is in heaven (v 17). In other words Peter believed this, not because he had discovered it on his own and not because a person told him. He knew it because God had revealed this to him (v 17).

Jesus continued speaking to His disciple Simon. And He may have enjoyed a chuckle at Simon's expense. I also say to you that you are Peter (v 18). Simon's nickname was Peter—the Greek word is "Petros." It is the masculinized version "Petras" the Greek word for rock. A rock is hard. It is immovable. Simon was nicknamed for his stubborn personality and hardheadedness. His obstinacy made him the last to understand something, and Jesus may have been laughing that Peter of all the disciples saw this, for he was so hardheaded and slow that only God could have revealed this insight to him.

But the positive aspect of being stubborn is that even though it may have taken Peter a long time to "get" an idea, once he got it, it would not easily be dislodged from his conviction or purpose. Jesus added that upon this rock of bold conviction, I will build My church (v 18). Conviction like Peter's would be the foundation of Jesus's church.

This is the first time Matthew has mentioned church, which is a translation of the Greek word "ekkleisia," which means to be called or gathered from afar. The church is the many different people groups who have believed upon Jesus, gathered into the Body of Christ as children of God. Like members of a human body, the members of the Body of Christ have diverse backgrounds, talents, and opportunities. But they are all united together in Christ from all over the world. The church is led by none other than Jesus. "Ekklesia" has less political or dominion overtones than kingdom. God's kingdom is not of this world (John 18:36). But the kingdom of God will be brought to this earth at the end of the age (Revelation 20:4-10). Meanwhile, the principles and life of the kingdom of God flow into the present world through the actions and interactions of God's people, His "ekklesia," the Body of Christ.

Then Jesus added something really interesting about this rock upon which He would build His church. He said, "and the gates of Hades will not overpower it" (v 18). There seems to be a double-meaning behind this statement.

The first meaning is a reference to the famous whirlpool and cave that was possibly already called the gates of Hades. Perhaps Jesus was on a bluff overlooking this cave, and turned and pointed to it when He made this statement to His disciples. This is the most immediate meaning to His disciples, given that they were in the district of Caesarea Philippi (v 13) where the whirlpool and cave were located.

The gates of Hades was a physical feature that represented the surrounding culture of paganism. Jesus was saying that this dominant culture will not prevail against My church. The world system and death itself will not prevail. The Body of Christ and its message of "love your neighbor" is in a pitched battle against the paganism of the world, and its philosophy of "the strong exploit the weak." Jesus, encouragingly, states clearly that "My church will win this battle."

In a battle, gates are a defensive structure that protect a city from being overrun. The image Jesus is drawing here is that when Christians who make up My church have a rock-like faith as Peter did, the surrounding culture will not be able to resist the power of the gospel. Believers are to take the offensive into culture.

And as Paul later describes with the armor of God, Christians are to use "the sword of the Spirit, which is the word of God" as their offensive weapon (Ephesians 6:17) when sieging the gates of Hades that surround and guard the godless cultures of exploitation. The way they are to storm the gates is by speaking the truth of God's word as the Spirit leads. But as we speak truth according to the Spirit's leading, we are to remember that we are not called to judge (Matthew 7:1). There will be judgement, but it will be God that does the judging.

The second meaning of Jesus's statement regarding gates of Hades is a reference to His defeat of death. Hades was a commonly used Greek name for the underworld or place of the dead. In its broadest sense, Hades was like the Hebrew "Sheol" (1 Samuel 2:6; 2 Samuel 22:6; Psalm 30:3). It was the place where the spirits of the deceased went when their life on earth came to an end. In Acts 2:27, the Greek word "hades" is substituted for the Hebrew word "Sheol" in quoting Psalm 16:10.

Jesus emphatically defeated death when He rose from the dead (2 Timothy 1:10). And Jesus shares His victory over death and Hades with all who believe in Him (John 3:16). Death has no lasting authority or victory over Christ's church (Hosea 13:14; 1 Corinthians 15:53-57). And Hades' gates cannot hold those who have been granted everlasting life in Jesus (Hebrews 2:14). Death and Hades have been defeated by Jesus and in the end, they will have no power over His church. Death has been sentenced, so to speak, and is on "death row." Death's ultimate destination is to be thrown into the lake of fire.

"Then death and Hades were thrown into the lake of fire. This is the second death, the lake of fire."
(Revelation 20:14)

This is the second part of Jesus's gates of Hades double entendre.

Jesus continued to speak to Peter telling him I will give you the keys of the kingdom of heaven (v 19).

In one sense this statement is personal and specific to Peter. Matthew shows us that it is specific because he uses a singular form of to you ("soi") in Jesus's address to Peter. This means Peter will receive the keys of the kingdom of heaven from Jesus (v 19). This will be a future handoff. Jesus did not tell Peter "I am giving the keys to you right now." This handoff seems to have occurred after Christ's resurrection. It may have been when Jesus reinstated Peter after his denial (John 21:15-22). It may have been at the Great Commission (Matthew 28:18-20). It may have been at Jesus's ascension (Acts 1:6-11); or on the day of Pentecost (Acts 2:1-4).

There is no scriptural record of Jesus using the exact language of this promise to anyone but Peter. However, Jesus said something functionally equivalent that was addressed to all the disciples:

"Truly I say to you, whatever you bind on earth shall have been bound in heaven; and whatever you loose on earth shall have been loosed in heaven."
(Matthew 18:18)

This statement from Matthew 18 grants the same authority, without the mention of "keys." It is likely that Jesus added "keys" here since He was using the illustration of a "gate." When we consider Jesus's meaning about the kingdom's keys, and what He tells Peter he will do with these keys; we can easily recognize that Jesus said similar things to other people all throughout His ministry. And so, while the wording of this profound statement is directed specifically to Peter, its principle is offered to everyone willing to follow Jesus. This becomes clear when we consider what Jesus said and meant by the keys of the kingdom of heaven (v 19).

What are the keys of the kingdom of heaven that Peter was to receive from Jesus? (v 19).

Keys are a symbol of authority and a practical tool. The possessor of keys can use the keys to lock and store whatever he wishes for safe keeping. And the possessor also has special access to whatever the keys unlock.

The keys of the kingdom of heaven represent some type of authority. More specifically it is having authority within the kingdom of heaven. And more specifically still, it is the authority to bind and loose things in heaven. Jesus told Peter that he could do two things with these keys.

The first is that whatever you bind on earth shall have been bound in heaven (v 19). This means whatever Peter saves or lock up with these keys, shall have been saved or locked up (literally bound) in heaven. Peter has the authority to invest things on earth and redeem them in the kingdom of heaven. In other words, the moments, the resources, the actions that Peter binds and dedicates to God in his life on earth shall have been bound and saved in the kingdom of heaven (v 19). This may mean that whatever of this Peter does on earth will be a part of his reward in heaven as Jesus taught His disciples in His Sermon on the Mount (Matthew 6:1-4; 6:5-7, 6:16-18).

"Do not store up for yourselves treasures on earth, where moth and rust destroy, and where thieves break in and steal. But store up for yourselves treasures in heaven, where neither moth nor rust destroys, and where thieves do not break in or steal; for where your treasure is, there your heart will be also."
(Matthew 6:19-21)

But at the same time whatever things Peter binds on earth God will redeem as a blessing to everyone in the kingdom heaven, so that Peter does not only sow and reap for the benefit of himself, but also to others (2 Corinthians 9:8-15). When we obey God and follow Christ's example of serving others, God uses our behavior and actions to enrich His kingdom. Jesus is telling Peter that he will be granted the keys and awesome authority of heaven to live his life on earth in such a way that it will bless others for all eternity.

The second thing Jesus told Peter that he could do with the keys of the kingdom is whatever you loose on earth shall have been loosed in heaven (v 19). Just as keys can bind and lock things away for safe keeping, they can also be used to unlock things for use now. Jesus was telling Peter that with these keys, he could have access to heaven's storehouses and loosen the things of heaven on earth. Heaven would be the equip and provide for whatever needs Peter had on earth.

Consider what Jesus taught His disciples on His sermon on the mount,

"Ask, and it will be given to you; seek, and you will find; knock, and it will be opened to you. For everyone who asks receives, and he who seeks finds, and to him who knocks it will be opened. Or what man is there among you who, when his son asks for a loaf, will give him a stone? Or if he asks for a fish, he will not give him a snake, will he? If you then, being evil, know how to give good gifts to your children, how much more will your Father who is in heaven give what is good to those who ask Him!"
(Matthew 7:7-11)

In telling Peter that He would give him the keys to the kingdom of heaven (v 19), Jesus was telling His disciple that he would have access to whatever he needed from heaven to accomplish God's will on earth; and that Peter's acts of love and service on earth would be eternally redeemed in heaven.

And while the Bible records Jesus saying this particular phrase about giving the keys of the kingdom (v 19) to only to Peter, it provides numerous records of Jesus and God saying similar things to other people. The promise Jesus made to Peter is not unique to Peter. It is available to everyone who will take up their cross and follow Him (Matthew 16:24-27).

Was there something special that Peter opened on behalf of the world, that might have caused Jesus to single him out in this passage? It was through Peter that God revealed to the Jews that His grace had been spread to the Gentiles. As Peter stated:

"Brethren, you know that in the early days God made a choice among you, that by my mouth the Gentiles would hear the word of the gospel and believe."
(Acts 15:7)

Peter was given a dream and calling, then preached the gospel to Gentiles in Caesarea by the Sea (a different Caesarea from Caesarea Philippi) at which time the Holy Spirit fell on them, showing that the gospel had been granted to the Gentiles (Acts 10).

But in spite of the Jewish Peter's special calling to open the kingdom of heaven to the Gentiles, here are a few examples of when Jesus promised others kingdom authority or power:

"Blessed are the poor in spirit, for theirs is the kingdom of heaven."
(Matthew 5:3)

"Jesus answered them, 'To you it has been granted to know the mysteries of the kingdom of heaven, but to them it has not been granted. For whoever has, to him more shall be given, and he will have an abundance; but whoever does not have, even what he has shall be taken away from him.'"
(Matthew 13:11-12)

"Truly I say to you, whatever you bind on earth shall have been bound in heaven; and whatever you loose on earth shall have been loosed in heaven."
(Matthew 18:18)

Jesus spoke this verse to His disciples. It is worth noting how the above verse is functionally identical to what Jesus told Peter that the keys of the kingdom (v 19) will do for him. This similarity is further evidence that Jesus's main point is not exclusive to Peter alone; but rather it is available to all of His disciples:

"Again I say to you, that if two of you agree on earth about anything that they may ask, it shall be done for them by My Father who is in heaven. For where two or three have gathered together in My name, I am there in their midst."
(Matthew 18:19-20)

"And Jesus answered and said to them, 'Truly I say to you, if you have faith and do not doubt, you will not only do what was done to the fig tree, but even if you say to this mountain, 'Be taken up and cast into the sea,' it will happen. And all things you ask in prayer, believing, you will receive.'"
(Matthew 21:21-22)

"And Jesus came up and spoke to them, saying, 'All authority has been given to Me in heaven and on earth. Go therefore and make disciples of all the nations, baptizing them in the name of the Father and the Son and the Holy Spirit, teaching them to observe all that I commanded you; and lo, I am with you always, even to the end of the age.'"
(Matthew 28:18-20)

"...but you will receive power when the Holy Spirit has come upon you; and you shall be My witnesses both in Jerusalem, and in all Judea and Samaria, and even to the remotest part of the earth."
(Acts 1:8)

Jesus's promise to give the keys of the kingdom of heaven to Peter is not unique to Peter (v 19). It is a promise to anyone who will take up their cross and follow Him (Matthew 16:24-27).

But the language Matthew uses to convey Jesus's thought is quite interesting for other reasons. It is worth noting the active voice of what Peter does on earth against the passive voice of what shall have been done in heaven (v 19). Peter's actions of bind and loose on earth are active, meaning he is the one who is actively doing these actions. But in heaven, the actions are done because of Peter but apart from Peter. In the kingdom these shall have been done on his account or at least on account of his actions.

In addition to the active and passive voices of these verbs are the aorist and perfect aspects they use. In Greek the aorist tense is the simplest form of a Greek verb. Its focus is the bare action or definition of the verb; "it happened and that's done." The perfect tense in Greek describes a completed action or event while it stresses its ongoing effects or consequences. Jesus told Peter that whatever you bind or loose now (aorist, it's done) on earth—shall have been bound or loosed (perfect, it's impact is ongoing) in heaven (v 19). The inference is that any definitive action of Peter has an immediate and ongoing effect in heaven.

These uses of the perfect aspect play with time and echo eternity. There is a past and a future component at work in them. Matthew's phrasing of Jesus's statement shall have been bound/loosed in the kingdom of heaven (v 19) conveys these actions as though they have already been accomplished because of what Peter will soon be doing. It is like saying the effects have been taking place in heaven before their cause occurs on earth. In other words, God has already bound and redeemed the things that Peter is doing on earth in the kingdom of heaven (v 19). It is similar to what Paul teaches in Ephesians:

"Blessed be the God and Father of our Lord Jesus Christ, who has blessed us with every spiritual blessing in the heavenly places in Christ, just as He chose us in Him before the foundation of the world, that we would be holy and blameless before Him. In love He predestined us to adoption as sons through Jesus Christ to Himself, according to the kind intention of His will."
(Ephesians 1:3-5)

"For we are His workmanship, created in Christ Jesus for good works, which God prepared beforehand so that we would walk in them."
(Ephesians 2:10)

But there is also a future component at play in these perfect aspects. The things Peter binds or loosens now shall also have been bound in the kingdom of heaven (v 18) and their consequences or effects shall be unfolding in the kingdom forever and ever.

If we zoom back, we might think of these things this way. In eternity past God predestined Peter to do and perform good works for His kingdom; and in eternity past God planned to reward Peter for doing these good works and to give everlasting blessings to others in heaven because of Peter's good works. During Peter's present life he performs those works, of his own free choice, a choice that is real and genuine.

This surfaces the paradox between the Bible telling us of God's sovereignty over all things and His granting to human a genuine choice that is real. But it is but one of many paradoxes. God is One, but Three. God is spirit, but also human (in Christ). God is in time, but beyond time. These paradoxes are beyond our understanding, In Ecclesiastes, King Solomon calls probing into such questions "hebel" which means "vaporous" or "foggy." We can't see clearly, because we are finite beings with eternity placed within our hearts (Ecclesiastes 3:11). Solomon's answer was to reconcile these mysteries through faith in God, as our creator and ultimately as our judge. Paul's answer is from Romans, where he says:

"Oh, the depth of the riches both of the wisdom and knowledge of God! How unsearchable are His judgments and unfathomable His ways! For who has known the mind of the Lord, or who became His counselor? Or who has first given to Him that it might be paid back to him again? For from Him and through Him and to Him are all things. To Him be the glory forever. Amen."
(Romans 11:33-36)

In eternity future, when His kingdom comes, Peter and others will receive everlasting blessings for what Peter did during his life, which was walking in the works that God prepared for him to perform (Ephesians 2:10).

Matthew then reports that after Jesus told Peter these things, that He then warned the disciples to tell no one that He was the Christ (v 20). It was not part of God's plan for Jesus's identity as the Messiah or the Son of God to be publicly acknowledged through a direct testimony from His disciples. The people were to determine the nature and identity of Jesus from other means, such as the testimony of Jesus' works (John 14:11). There are many possible reasons Jesus took this route. One is to fulfill prophecy, as noted in our commentary on Matthew 13:10-17. It is possible that Jesus desired to lead people away from their pre-conceived notions of how the Messiah would appear, and lead them to a new understanding through His works and testimony. It is also possible that Jesus was protecting His disciples from attack, until the proper time.