2. And these are the shmot of the Bnei Aharon: Nadav the bechor, and Avihu, Eleazar, and Itamar [Vayikra 10].
3. These are the shmot of the Bnei Aharon, the kohanim hameshuchim whose hand he filled [i.e., ordained] to be kohen [Shemot 29; Vayikra 8].
4. And Nadav and Avihu died before Hashem, when they offered eish zarah (unauthorized fire) before Hashem, in the midbar of Sinai, and they had no children; and Eleazar and Itamar ministered in the kohen's office in the sight of Aharon their av [Vayikra 10].
5. And Hashem spoke unto Moshe, saying,
6. Bring the tribe of Levi near [i.e., present them as offerings are presented], and present them before Aharon HaKohen, that they may minister unto him [i.e., help, be of service to him].
7. And they [the Levi'im] shall be shomer mishmeret (watch the watch, keep the guard duty) for him and for the mishmeret kol HaEdah (duty of the whole Congregation) before the Ohel Mo'ed, to do avodat HaMishkan (the work, service of the Mishkan).