Bamidbar 8:21-23

Orthodox Jewish Bible

²¹ And the Levi’im purified themselves, and they immersed their clothes; and Aharon offered them as a tenufah before Hashem; and Aharon made kapporah for them to make them tahor.

²² And after that went the Levi’im in to do their Avodah in the Ohel Mo’ed before Aharon, and before his Banim; just as Hashem had commanded Moshe concerning the Levi’im, so did they with them.

²³ And Hashem spoke unto Moshe, saying,