Deuteronomy 23:1-4

1“No man whose testicles have been crushed or whose penis has been cut off may enter the Lord’s assembly.

2No one of illegitimate birth may enter the Lord’s assembly; none of his descendants, even to the tenth generation, may enter the Lord’s assembly.

3No Ammonite or Moabite may enter the Lord’s assembly; none of their descendants, even to the tenth generation, may ever enter the Lord’s assembly.

4This is because they did not meet you with food and water on the journey after you came out of Egypt, and because Balaam son of Beor from Pethor in Aram-naharaim was hired to curse you.