Hebrews 7:2-6

2and Abraham gave him a tenth of everything. First, his name means king of righteousness, then also, king of Salem, meaning king of peace.

3Without father, mother, or genealogy, having neither beginning of days nor end of life, but resembling the Son of God, he remains a priest forever.

4Now consider how great this man was: even Abraham the patriarch gave a tenth of the plunder to him.

5The sons of Levi who receive the priestly office have a command according to the law to collect a tenth from the people  — that is, from their brothers and sisters — though they have also descended from Abraham.

6But one without this lineage collected a tenth from Abraham and blessed the one who had the promises.