This Malki-Tzedek, king of Shalem, a cohen of God Ha'Elyon, met Avraham on his way back from the slaughter of the kings and blessed him;
also Avraham gave him a tenth of everything. Now first of all, by translation of his name, he is "king of righteousness"; and then he is also king of Shalem, which means "king of peace."
There is no record of his father, mother, ancestry, birth or death; rather, like the Son of God, he continues as a cohen for all time.
Just think how great he was! Even the Patriarch Avraham gave him a tenth of the choicest spoils.
Now the descendants of Levi who became cohanim have a commandment in the Torah to take a tenth of the income of the people, that is, from their own brothers, despite the fact that they too are descended from Avraham.
But Malki-Tzedek, even though he was not descended from Levi, took a tenth from Avraham. Also, he blessed Avraham, the man who received God's promises;