Numbers 8:14; Numbers 16:9; Numbers 16:21

Numbers 8:14

14 "Thus you shall separate the Levites from among the sons of Israel, and the Levites shall be Mine.

Numbers 16:9

9 is it not enough for you that the God of Israel has separated you from the rest of the congregation of Israel, to bring you near to Himself, to do the service of the tabernacle of the LORD , and to stand before the congregation to minister to them;

Numbers 16:21

21 "Separate yourselves from among this congregation, that I may consume them instantly."