Hebrews 7:5-7 And indeed they of the sons of Levi who take the office of the priesthood have a misvah to take tithes of the people according to the torah - that is, of their brothers, though they come from the loins of Abraham:

ECB⁽ⁱ⁾ ⁵ And indeed they of the sons of Levi who take the office of the priesthood have a misvah to take tithes of the people according to the torah - that is, of their brothers, though they come from the loins of Abraham: ⁶ but whoever was not genealogized was tithed by Abraham and blessed him who had the pre-evangelisms. ^{Genesis 14:20, Numbers 18:21} ⁷ And apart from all controversy the lesser is blessed of the better.