Hebrews 7:5-7

Sawyer(i) 5 And the sons of Levi who receive the priesthood, have a commandment to tithe the people according to the law, that is their brothers, although descended from Abraham; 6 but he whose descent is not reckoned from them received tithes of Abraham, and blessed him who has the promises. 7 But beyond all contradiction, the less is blessed by the greater.