And the LORD said to Moses, Speak to Aaron your brother, that he does not come at all times into the holy place within the veil before the mercy seat, which is upon the ark; so that he does not die: for I will appear in the cloud upon the mercy seat.
These words the LORD spoke to all your assembly in the mount out of the midst of the fire, of the cloud, and of the thick darkness, with a great voice: and he added no more. And he wrote them in two tables of stone, and delivered them to me.