Numbers 8:21
And the Levites purified themselves, and washed their clothes. And Aaron waved them before the LORD, and made an atonement for them to cleanse them.
Numbers 8:7
And this do unto them when thou cleansest them: sprinkle water of purifying upon them and make a razor to run along upon all the flesh of them, and let them wash their clothes, and then they shall be clean.
Numbers 8:11-13
And let Aaron heave the Levites before the LORD, for a heave offering given of the children of Israel, and then let them be appointed to wait upon the service of the LORD.
Numbers 8:15
and after that, let them go and do the service of the tabernacle of witness. Cleanse them and wave them,
Numbers 3:12
"Behold, I have taken the Levites, from among the children of Israel, for all the firstborn that openeth the matrix among the children of Israel: so that the Levites shall be mine.
Numbers 19:12
And he shall purify himself with the ashes the third day and then he shall be clean the seventh day. And if he purify not himself the third day, then the seventh day, he shall not be clean.
Numbers 19:19
And the clean person shall sprinkle upon the unclean the third day and the seventh day. And the seventh day he shall purify himself and wash his clothes and bathe himself in water, and shall be clean at evening.