The Lord said to him, “Tell your brother Aaron that there are times when he cannot go behind the curtain into the Most Holy Place where the Ark is. If he goes in when I appear in a cloud over the lid on the Ark, he will die.
The Lord spoke these commands to all of you on the mountain in a loud voice out of the fire, the cloud, and the deep darkness; he did not say anything else. Then he wrote them on two stone tablets, and he gave them to me.