Hebrews 7:5
5 They indeed of the sons of Levi who receive the priest’s office have a commandment to take tithes of the people according to the law, that is, of their brothers, though these have come out of the body of Abraham,
5 They indeed of the sons of Levi who receive the priest’s office have a commandment to take tithes of the people according to the law, that is, of their brothers, though these have come out of the body of Abraham,