Leviticus 8:35

8:35 You must reside at the entrance of the Meeting Tent day and night for seven days and keep the charge of the Lord so that you will not die, for this is what I have been commanded.”

Leviticus 22:9

22:9 They must keep my charge so that they do not incur sin on account of it and therefore die because they profane it. I am the Lord who sanctifies them.