Leviticus 16:17
And there shall be no man in the tabernacle of the congregation when he goeth in to make an atonement in the holy place, until he come out, and have made an atonement for himself, and for his household, and for all the congregation of Israel.
Cross-reference
Leviticus 16:10 introduces the scapegoat ritual, which complements the priest's atonement inside the Tent — both parts of the same Day of Atonement.
Leviticus 16:24 describes the priest bathing and offering burnt offerings after leaving the Tent, concluding the sequence begun in verse 17.
In Exodus 34:3, a similar isolation is commanded for Moses on Sinai—no one else may be present when meeting God.
In Isaiah 53:6, the suffering servant bears the iniquity of all—fulfilling the high priest's atonement for all Israel.
In Luke 1:10, the people pray outside while Zechariah offers incense alone—similar to the high priest alone on Atonement.
In 1 Timothy 2:5, Christ as the one mediator parallels the high priest's sole role on the Day of Atonement.
In Hebrews 9:7, this verse directly describes the high priest's solitary entry on the Day of Atonement, confirming the ritual.
In 1 Peter 2:24, Christ bearing our sins in his body fulfills the atonement imagery of the Day of Atonement.
In 1 Peter 3:18, Christ's once-for-all suffering to bring us to God mirrors the high priest's atonement bringing people near.