Deuteronomy 23:9-11

Amplified Bible, Classic Edition

⁹ When you go forth against your enemies and are in camp, you shall keep yourselves from every evil thing.

¹⁰ If there is among you any man who is not clean by reason of what happens to him at night, then he shall go outside the camp; he shall not come within the camp;

¹¹ But when evening comes he shall bathe himself in water, and when the sun is down he may return to the camp.