Hebrews 7:5-7

Revised Standard Version Catholic Edition

⁵ And those descendants of Levi who receive the priestly office have a commandment in the law to take tithes from the people, that is, from their brethren, though these also are descended from Abraham. ⁶ But this man who has not their genealogy received tithes from Abraham and blessed him who had the promises. ⁷ It is beyond dispute that the inferior is blessed by the superior.