“Tell Aaron your brother not to come at any time into the Holy Place inside the veil … so that he may not die” (16:2). Even Aaron, the original high priest of Israel, was not allowed to randomly or spontaneously enter the Holy Place of God’s presence. His blazingly pure, powerful holiness was not something to be treated lightly. Aaron and later priests were instructed to enter only once a year, after making atonement through sacrifices (16:16).
“For on this day shall atonement be made for you” (v16). Temple sacrifices are over and the Holy Place is open, because Jesus gave himself “once and for all” to make us acceptable to God (Hebrews 9:12).