If a man becomes unclean during the night, he must go outside the camp and not come back.
“ ‘If semen goes out from a man, he must bathe in water; he will be unclean until evening.
But when evening comes, he must wash himself, and at sunset he may come back into the camp.
When you are camped in time of war, keep away from unclean things.
Don’t take any of the things that are to be destroyed as an offering to the Lord. If you take them and bring them into our camp, you yourselves will be destroyed, and you will bring trouble to all of Israel.