This Melchizedek was king of Salem and priest of God Most High. He met Abraham returning from the slaughter of the kings and blessed him,
and Abraham apportioned to him a tenth of everything. First, his name means “king of righteousness.” Then also, “king of Salem” means “king of peace.”
Without father or mother or genealogy, without beginning of days or end of life, like the Son of God, he remains a priest for all time.
Now the law commands the sons of Levi who become priests to collect a tenth from the people—that is, from their brothers—though they too are descended from Abraham.
But Melchizedek, who did not trace his descent from Levi, collected a tenth from Abraham and blessed him who had the promises.
In the case of the Levites, mortal men collect the tenth; but in the case of Melchizedek, it is affirmed that he lives on.
Now if perfection could have been attained through the Levitical priesthood (for on this basis the people received the law), why was there still need for another priest to appear—one in the order of Melchizedek and not in the order of Aaron?
He of whom these things are said belonged to a different tribe, from which no one has ever served at the altar.
For it is clear that our Lord descended from Judah, a tribe as to which Moses said nothing about priests.
but Jesus became a priest with an oath by the One who said to Him: “The Lord has sworn and will not change His mind: ‘You are a priest forever.’”
Therefore He is able to save completely those who draw near to God through Him, since He always lives to intercede for them.
Such a high priest truly befits us—One who is holy, innocent, undefiled, set apart from sinners, and exalted above the heavens.
Unlike the other high priests, He does not need to offer daily sacrifices, first for His own sins and then for the sins of the people; He sacrificed for sin once for all when He offered up Himself.