Leviticus 21:23 extends the principle of not profaning the sanctuary to priests with blemishes, complementing the high priest's restriction here.

Leviticus 8:9-12 details the anointing of Aaron that places the crown of anointing oil on him, the basis for not leaving the sanctuary.

Leviticus 10:7 gives the same command to Aaron and his sons not to leave the sanctuary because of the anointing oil, mirroring the high priest's restriction.

Leviticus 8:12 records the actual anointing of Aaron that later grounds the high priest's obligation to remain in the sanctuary.

Exodus 29:6 describes placing the holy crown on the high priest's head, directly corresponding to the crown of anointing oil in Leviticus 21:12.

Exodus 29:7 records pouring anointing oil on the high priest's head, the very anointing that obligates him to remain in the sanctuary.

Numbers 16:5 affirms that God chooses who is holy and draws near—paralleling the high priest's unique consecration by anointing here.