Numbers 5:3-4

5:3 You must expel both men and women; you must put them outside the camp, so that they will not defile their camps, among which I live.” 5:4 So the Israelites did so, and expelled them outside the camp. As the Lord had spoken to Moses, so the Israelites did.

Numbers 12:15

12:15 So Miriam was shut outside of the camp for seven days, and the people did not journey on until Miriam was brought back in.

Numbers 15:35

15:35 Then the Lord said to Moses, “The man must surely be put to death; the whole community must stone him with stones outside the camp.”

Numbers 19:3

19:3 You must give it to Eleazar the priest so that he can take it outside the camp, and it must be slaughtered before him.