Numbers 5:1-4 - Rules Concerning Those Unclean
1 And Jehovah speaketh unto Moses, saying, 2 'Command the sons of Israel, and they send out of the camp every leper, and every one with an issue, and every one defiled by a body; 3 from male unto female ye do send out; unto the outside of the camp ye do send them; and they defile not their camps in the midst of which I do tabernacle.' 4 And the sons of Israel do so, and they send them out unto the outside of the camp; as Jehovah hath spoken unto Moses so have the sons of Israel done.