Genesis 14:21-24

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.”