According to this rite: Let them be sprinkled with the water of purification, and let them shave all the hairs of their flesh. And when they shall have washed their garments, and are cleansed,
And in this manner he that is clean shall purify the unclean on the third and on the seventh day. And being expiated the seventh day, he shall wash both himself and his garments, and be unclean until the evening.
And afterwards they shall enter into the tabernacle of the covenant, to serve me. And thus shalt thou purify and consecrate them for an oblation of the Lord: for as a gift they were given me by the children of Israel.
Shall be sprinkled with this water on the third day, and on the seventh, and so shall be cleansed. If he were not sprinkled on the third day, he cannot be cleansed on the seventh.
I have taken the Levites from the children of Israel, for every firstborn that openeth the womb among the children of Israel: and the Levites shall be mine.
That being purified they might go into the tabernacle of the covenant to do their services before Aaron and his sons. As the Lord had commanded Moses touching the Levites, so was it done.