Hebrews 7 Commentary

The Pauline Author starts out by explaining the great priesthood of Melchizedek as a reflection of the priesthood of Jesus.

Melchizedek was greater than Abraham and greater than other priests because Abraham gave him a tenth of the spoils and because Abraham received a blessing from Melchizedek.

The Levitical priesthood and the law were necessary parts of the Old Covenant. Someone greater than the Levite priests was needed because of the insufficiency of the law to make people perfect.

If human perfection could have come through the Levitical priesthood and the Old Covenant (the law), we would not have needed the greater priest (Christ) and the New Covenant He brought.