Hebrews 7:4-6

New Century Version

⁴ You can see how great Melchizedek was. Abraham, the great father, gave him a tenth of everything that he won in battle. ⁵ Now the law says that those in the tribe of Levi who become priests must collect a tenth from the people—their own people—even though the priests and the people are from the family of Abraham. ⁶ Melchizedek was not from the tribe of Levi, but he collected a tenth from Abraham. And he blessed Abraham, the man who had God’s promises.