Hebrews 7:4-6

21st Century King James Version

⁴ Now consider how great this man was, unto whom even the patriarch Abraham gave a tenth of the spoils.

⁵ And verily, those who are of the sons of Levi, who receive the office of the priesthood, have a commandment to take tithes from the people according to the law — that is, from their brethren — though they come out of the loins of Abraham.

⁶ But Melchizedek, whose descent is not counted from them, received tithes from Abraham and blessed him that had the promises.