Hebrews 7:4-6

New International Version (NIV)

4 Just think how great he was: Even the patriarch Abraham gave him a tenth of the plunder!
5 Now the law requires the descendants of Levi who become priests to collect a tenth from the people– that is, their brothers– even though their brothers are descended from Abraham.
6 This man, however, did not trace his descent from Levi, yet he collected a tenth from Abraham and blessed him who had the promises.

New King James (NKJ)

4 Now consider how great this man was, to whom even the patriarch Abraham gave a tenth of the spoils.
5 And indeed those who are of the sons of Levi, who receive the priesthood, have a commandment to receive tithes from the people according to the law, that is, from their brethren, though they have come from the loins of Abraham;
6 but he whose genealogy is not derived from them received tithes from Abraham and blessed him who had the promises.

King James Version (KJV)

4 Now consider how great this man was, unto whom even the patriarch Abraham gave the tenth of the spoils.
5 And verily they that are of the sons of Levi, who receive the office of the priesthood, have a commandment to take tithes of the people according to the law, that is, of their brethren, though they come out of the loins of Abraham:
6 But he whose descent is not counted from them received tithes of Abraham, and blessed him that had the promises.