Hebrews 7:2-6

2and Abraham gave him a tenth of all [the spoil]. He is, first of all, by the translation of his name, king of righteousness, and then he is also king of Salem, which means king of peace.

3Without [any record of] father or mother, nor ancestral line, without [any record of] beginning of days (birth) nor ending of life (death), but having been made like the Son of God, he remains a priest without interruption and without successor.

4Now pause and consider how great this man was to whom Abraham, the patriarch, gave a tenth of the spoils.

5It is true that those descendants of Levi who are charged with the priestly office are commanded in the Law to collect tithes from the people—which means, from their kinsmen—though these have descended from Abraham.

6But this person [Melchizedek] who is not from their Levitical ancestry received tithes from Abraham and blessed him who possessed the promises [of God].