Numbers 5:1-4 - Rules Concerning Those Unclean
1 And the Lord said to Moses, 2 Give orders to the children of Israel to put outside the tent-circle every leper, and anyone who has any sort of flow from his body, and anyone who is unclean from the touch of the dead; 3 Male or female they are to be put outside the tent-circle, so that they may not make unclean my resting-place among them. 4 So the children of Israel did as the Lord had said to Moses, and put them outside the tent-circle.