Hebrews 7:4-10 NIV

4 Just think how great he was: Even the patriarch Abraham gave him a tenth of the plunder!

References for Hebrews 7:4

5 Now the law requires the descendants of Levi who become priests to collect a tenth from the people—that is, from their fellow Israelites—even though they also are descended from Abraham.

References for Hebrews 7:5

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.

References for Hebrews 7:6

7 And without doubt the lesser is blessed by the greater.
8 In the one case, the tenth is collected by people who die; but in the other case, by him who is declared to be living.

References for Hebrews 7:8

9 One might even say that Levi, who collects the tenth, paid the tenth through Abraham,
10 because when Melchizedek met Abraham, Levi was still in the body of his ancestor.