Numbers 5:1-4

And the LORD spake unto Moses, saying, Command the children of Israel, that they put out of the camp every leper, and every one that hath an issue, and whosoever is defiled by the dead: both male and female shall ye put out, without the camp shall ye put them; that they defile not their camps, in the midst whereof I dwell. And the children of Israel did so, and put them out without the camp: as the LORD spake unto Moses, so did the children of Israel.