Genesis 14:20

And he said, “Blessed be Yahweh, The God of Shem; And let Canaan be his servant.

So Jethro said, “Blessed be Yahweh who delivered you from the hand of the Egyptians and from the hand of Pharaoh, and who delivered the people from under the hand of the Egyptians.

For this Melchizedek, king of Salem, priest of the Most High God, who met Abraham as he was returning from the slaughter of the kings and blessed him,

to whom also Abraham apportioned a tenth part of all, was first of all, by the translation of his name, king of righteousness, and then also king of Salem, which is king of peace.

Now observe how great this man was to whom Abraham, the patriarch, gave a tenth of the spoils.