Flavius Josephus, Antiquities of the Jews
William Whiston, A.M., Ed.

[179] So Abram, when he had saved the captive Sodomites, who had been taken by the Assyrians, and Lot also, his kinsman, returned home in peace. Now the king of Sodom met him at a certain place, which they called The King's Dale, where Melchisedec, king of the city Salem, received him. That name signifies, the righteous king: and such he was, without dispute, insomuch that, on this account, he was made the priest of God: however, they afterward called Salem Jerusalem. Now this Melchisedec supplied Abram's army in an hospitable manner, and gave them provisions in abundance; and as they were feasting, he began to praise him, and to bless God for subduing his enemies under him. And when Abram gave him the tenth part of his prey, he accepted of the gift: but the king of Sodom desired Abram to take the prey, but entreated that he might have those men restored to him whom Abram had saved from the Assyrians, because they belonged to him. But Abram would not do so; nor would make any other advantage of that prey than what his servants had eaten; but still insisted that he should afford a part to his friends that had assisted him in the battle. The first of them was called Eschol, and then Enner, and Mambre.