Genesis 14:18-24

And Melchizedek, who was both a priest of the Most High God and the king of Salem, brought out to Abram bread and wine. He spoke over him a special blessing, saying, “Blessed is Abram by God Most High, Creator of heaven and earth. And blessed be God Most High, whose power delivered your enemies into your hands!” Abram gave Melchizedek a tenth of all he possessed. Then the king of Sodom said to Abram, “Just give me the people you rescued; keep all the spoils for yourself.” But Abram said to the king of Sodom, “I raised my hand to YAHWEH, God Most High, and I pledged a solemn oath to the Possessor of heaven and earth that I would keep nothing for myself that belongs to you, not even a thread of a garment or sandal strap. That way, you will never be able to say, ‘I was the one that made Abram rich.’ I will take nothing except what my young men have eaten, and the share of those who went with me—Aner, Eshcol, and Mamre. Let them take their share.”