Nehemiah 13:1-2

ON THAT day they read in the Book of Moses in the audience of the people, and in it was found written that no Ammonite or Moabite should ever come into the assembly of God, For they met not the Israelites with food and drink but hired Balaam to curse them; yet our God turned the curse into a blessing. [Num. 22:3-11; Deut. 23:5, 6.]