Hebrews 7:5-7

Amplified Bible

⁵ It 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. ⁶ But this person [Melchizedek] who is not from their Levitical ancestry received tithes from Abraham and blessed him who possessed the promises [of God]. ⁷ Yet it is beyond all dispute that the lesser person is always blessed by the greater one.