Deuteronomy 23:1-14

No man who has had part of his sex organ cut off may come into the meeting to worship the LORD. No one born to parents who were forbidden by law to marry may come into the meeting to worship the LORD. The descendants for ten generations may not come in either. No Ammonite or Moabite may come into the meeting to worship the LORD, and none of their descendants for ten generations may come in. This is because the Ammonites and Moabites did not give you bread and water when you came out of Egypt. And they hired Balaam son of Beor, from Pethor in Northwest Mesopotamia, to put a curse on you. But the LORD your God would not listen to Balaam. He turned the curse into a blessing for you, because the LORD your God loves you. Don’t wish for their peace or success as long as you live. Don’t hate Edomites; they are your close relatives. Don’t hate Egyptians, because you were foreigners in their country. The great-grandchildren of these two peoples may come into the meeting to worship the LORD. When you are camped in time of war, keep away from unclean things. If a man becomes unclean during the night, he must go outside the camp and not come back. But when evening comes, he must wash himself, and at sunset he may come back into the camp. Choose a place outside the camp where people may go to relieve themselves. Carry a tent peg with you, and when you relieve yourself, dig a hole and cover up your dung. The LORD your God moves around through your camp to protect you and to defeat your enemies for you, so the camp must be holy. He must not see anything unclean among you so that he will not leave you.