Deuteronomy 23:9-14 - Cleanliness Of The Camp
9 When the camp shall go forth against thine enemies, and watch thyself from every evil word. 10 If there shall be in thee a man that shall not be clean from chance of the night, and he shall go forth without the camp; he shall not come in to the midst of the camp: 11 And it was turning to evening, he shall wash in water: and as the sun went down he shall come into the midst of the camp. 12 And a hand shall be to thee from without the camp, and thou shalt go forth there without: 13 And a peg shall be to thee upon thy utensil: and it was in thy sitting down without, and digging with it, and turn thou back and cover thy excrement: 14 For Jehovah thy God goes in the midst of thy camp to deliver thee, and to give thine enemies before thy face; and thy camp was holy; and he will not see in thee the nakedness of a word and turn back from after thee.