Numbers 8:21
And the Levites purified themselves, and they washed their garments, and {Aaron offered them} [as] a wave offering {before Yahweh}; and Aaron made atonement for them to purify them.
Numbers 8:7
So you will do to them, to purify them: sprinkle on them waters of purification, and {they will shave their whole body} and wash their garments.
Numbers 8:11-13
and {Aaron will offer} the Levites [as] a wave offering {before Yahweh} from the {Israelites}, and they will do the work of Yahweh.
Numbers 8:15
And after this the Levites will come to serve [at] the tent of assembly, and you will purify them, and you {will offer} them [as] a wave offering.
Numbers 3:12
"I [myself] receive the Levites from the midst of the {Israelites} in the place of all [the] firstborn of [the] offspring of the womb from the {Israelites}. The Levites will be mine
Numbers 19:12
He will purify himself on the third day, and on the seventh day he will be clean. If he does not purify himself on the third day, he will not be clean on the seventh day.
Numbers 19:19
The clean [person] will spatter the unclean on the third day and on the seventh day; and on the seventh day he will purify him, and he will wash his garments; he will bathe in the waters, and in the evening he will be clean.