Numbers 12:14
12:14 The Lord said to Moses, “If her father had only spit in her face, would she not have been disgraced for seven days? Shut her out from the camp seven days, and afterward she can be brought back in again.”
Numbers 19:7
19:7 Then the priest must wash his clothes and bathe himself in water, and afterward he may come into the camp, but the priest will be ceremonially unclean until evening.
Numbers 32:22
32:22 and the land is subdued before the Lord, then afterward you may return and be free of your obligation to the Lord and to Israel. This land will then be your possession in the Lord’s sight.