Just think how great he was: Even the patriarch1 Abraham gave him a tenth of the plunder!2
References for Hebrews 7:4
Now the law requires the descendants of Levi who become priests to collect a tenth from the people3--that is, their brothers--even though their brothers are descended from Abraham.
References for Hebrews 7:5
This man, however, did not trace his descent from Levi, yet he collected a tenth from Abraham and blessed4 him who had the promises.5
References for Hebrews 7:6
And without doubt the lesser person is blessed by the greater.
In the one case, the tenth is collected by men who die; but in the other case, by him who is declared to be living.6
References for Hebrews 7:8
One might even say that Levi, who collects the tenth, paid the tenth through Abraham,
because when Melchizedek met Abraham, Levi was still in the body of his ancestor.