Bible: Leviticus 16:2, 13

16:2 and the Lord said to Moses: “Tell Aaron your brother that he must not enter at any time into the holy place inside the veil-canopy 1  in front of the atonement plate 2  that is on the ark so that he may not die, for I will appear in the cloud over the atonement plate.

16:13 He must then put the incense on the fire before the Lord, and the cloud of incense will cover the atonement plate which is above the ark of the testimony, 3  so that he will not die. 4 
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