Hebrews 7:4-6

Common(i) 4 See how great he was! Even the patriarch Abraham gave him a tenth of the spoils. 5 And those descendants of Levi who receive the priestly office have a commandment in the law to take a tenth from the people, that is, from their brethren, though these also are descended from Abraham. 6 But this man whose genealogy is not derived from them received a tenth from Abraham and blessed him who had the promises.