That anyone who is unclean shall not enter the Camp of the Levites, and corresponding to it, in subsequent generations was the Temple mount

Deuteronomy 23:10 · Hebrew 23:11

KJV

If there be among you any man, that is not clean by reason of uncleanness that chanceth him by night, then shall he go abroad out of the camp, he shall not come within the camp:

ASV

If there be among you any man, that is not clean by reason of that which chanceth him by night, then shall he go abroad out of the camp, he shall not come within the camp:

WEB

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

JPS

If there be among you any man, that is not clean by reason of that which chanceth him by night, then shall he go abroad out of the camp, he shall not come within the camp.