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1For this Melchizedek, king of Salem, priest of God Most High, who met Abraham returning from the slaughter of the kings and blessed him, 2to whom also Abraham divided a tenth part of all (being first, by interpretation, King of righteousness, and then also King of Salem, which is King of peace; 3without father, without mother, without genealogy, having neither beginning of days nor end of life, but made like the Son of God), remains a priest continually.
4Now consider how great this man was, to whom even Abraham, the patriarch, gave a tenth out of the best spoils. 5They indeed of the sons of Levi who receive the priest`s office have a commandment to take tithes of the people according to the law, that is, of their brothers, though these have come out of the loins of Abraham, 6but he whose genealogy is not counted from them has taken tithes of Abraham, and has blessed him who has the promises. 7But without any dispute the less is blessed of the better. 8Here men who die receive tithes, but there one, of whom it is testified that he lives. 9So to say, through Abraham even Levi, who receives tithes, has paid tithes, 10for he was yet in the loins of his father when Melchizedek met him.
Hebrews 7:1-10 (WEB)