Leviticus 16:2

Expanded Bible

² The Lord said to him, “Tell your brother Aaron that there are times when he cannot go ·behind [inside] the curtain ·into the Most Holy Place [^Lbefore the mercy seat/atonement cover; Ex. 25:17–22] where the Ark is. If he goes in when I appear in a cloud over the ·lid on the Ark [mercy seat; atonement cover], he will die.