Guardrails to keep Kohathites alive
Yahweh spoke to Moses and to Aaron, saying,
Don’t cut off the tribe of the families of the Kohathites from among the Levites;
but thus do to them, that they may live, and not die, when they approach to the most holy things: Aaron and his sons shall go in, and appoint them everyone to his service and to his burden;
but they shall not go in to see the sanctuary even for a moment, lest they die.