Lev Leviticus, chapter Book of Leviticus, chapter 16
And the LORD-Yehōvah (Messiah Pre-Incarnate) said unto Moshe [He Who Draws Out Of The Waters], Speak unto Aharon [Bright, Very High] youi brother, that he come not at all times into the holy [place] within the veil before the mercy seat, which [is] upon the ark; that he die not: for I will appear in the cloud upon the mercy seat.Exo 30:10; Heb 9:7; Heb 9:13