Deuteronomy 23:9-14

Laws of Sanitation

⁹ "When the army goes out against your enemies, then keep yourself from every wicked thing. ¹⁰ If there is any man among you who becomes unclean by some occurrence in the night, then he shall go outside the camp; he shall not come inside the camp. ¹¹ But it shall be, when evening comes, that he shall wash with water; and when the sun sets, he may come into the camp. ¹² Also you shall have a place outside the camp, where you may go out; ¹³ and you shall have an implement among your equipment, and when you sit down outside, you shall dig with it and turn and cover your refuse. ¹⁴ For the Lord your God walks in the midst of your camp, to deliver you and give your enemies over to you; therefore your camp shall be holy, that He may see no unclean thing among you, and turn away from you