Numbers 5:1-4 - Rules Concerning Those Unclean
1 And the LORD spoke to Moses, saying, 2 Command the children of Israel, that they put out of the camp every leper, and every one that hath an issue, and whoever is defiled by the dead: 3 Both male and female shall ye put out, without the camp shall ye put them; that they defile not their camps, in the midst of which I dwell. 4 And the children of Israel did so, and put them out without the camp: as the LORD spoke to Moses, so did the children of Israel.