Deuteronomy 23:4-6

Living Bible

⁴ The reason for this law is that these nations did not welcome you with food and water when you came out of Egypt; they even tried to hire Balaam, the son of Beor from Pethor, Mesopotamia, to curse you. ⁵ But the Lord wouldn’t listen to Balaam; instead, he turned the intended curse into a blessing for you because the Lord loves you. ⁶ You must never, as long as you live, try to help the Ammonites or the Moabites in any way.