"Do not cut off the tribe of the families of the Kohathites from among the Levites;
Numbers 4:18
Surrounding context
4:17 Then the LORD spoke to Moses and Aaron, saying:
4:18 "Do not cut off the tribe of the families of the Kohathites from among the Levites;
4:19 but do this in regard to them, that they may live and not die when they approach the most holy things: Aaron and his sons shall go in and appoint each of them to his service and his task.