Matthew 1:22-25 meaning

The parallel account of this event is found in Luke 2:1-7.

All these events fulfilled a Messianic prophecy spoken of long before by God's prophet Isaiah. Matthew reiterates Jesus's divinity and lists the first instance of what will be about nineteen prophetic fulfillments he explicitly chronicles. (There will be numerous other Messianic fulfillments that he will reference and symbolically allude to that aren't made explicit)

Prophecies frequently have multiple fulfillments, often one in the immediate time frame and others in the future. Matthew cites Isaiah:

"Therefore the Lord Himself will give you a sign: Behold, a virgin will be with child and bear a son, and she will call His name Immanuel" (Isaiah 7:14).

Originally, Isaiah spoke this prophecy to Ahaz, king of Judah. Isaiah told him that the foe he feared would soon be vanquished by Assyria. That foe was the northern kingdom of Israel, made up of the ten tribes that broke away and formed their own kingdom during the reign of Rehoboam. Isaiah prophesies that a virgin would have a baby, and before that baby reached the age of knowing good and evil (i.e. was still a toddler) the kingdom of Israel would fall to Assyria. God would be with Judah (Immanuel means "God with us") in protecting them from Israel. Ahaz chose not to trust in God or heed Isaiah's warnings. This prophecy proved true within the timeframe that Isaiah said it would.

But this prophecy also applied to an even more unbelievable event, some 700 years in the future. Namely, that a virgin would conceive of the Holy Spirit, and Immanuel ("God with us") would occur—God would dwell among humans in human form: the man, Jesus, the Messiah.

Mary was a virgin who was with child by the Holy Spirit, and was to bear a Son (v 23). However, instead of calling the son Jesus, which describes His function of saving His people from their sins, Isaiah cites an additional name for the Son born of the virgin—Immanuel, which translated means, "God with us." So not only is Jesus given His name (Yeshua, or "Yahweh Saves"); He is also called "God with us." Both names indicate that Jesus is the Divine Son of God.

The passage concludes by resolving Joseph's story. He awoke from his sleep and did as the angel of the Lord had commanded him in the dream (v 24). Joseph set aside his plan to put Mary away secretly. Joseph courageously and readily obeyed God, and took Mary as wife. This showed he had a heart after God's heart, as did his forefather King David (1 Samuel 13:14). Joseph went beyond what God commanded, and kept Mary a virgin until she gave birth (v 25). The text does not tell us why, but it seems reasonable that Joseph saw this as an act of worship, to honor the work of the Holy Spirit in Mary. When Mary bore a Son, Joseph named him Jesus, again following the command given him by the angel of the Lord.