Leviticus 21:8 commands to sanctify the priest because he offers God's bread, directly backing up the holiness statement in v7.

Leviticus 21:13 commands the high priest to marry a virgin, directly expanding on the marriage restrictions for priests in Lev 21:7.

Leviticus 19:29 forbids making a daughter a harlot, connecting to Lev 21:7's prohibition of marrying a harlot — both involve sexual defilement.

Ezekiel 44:22 repeats the same priestly marriage restrictions, adding that a widow of a priest is also permissible.

In Ezra 10:18, priests who married foreign women are listed as offenders — this verse's prohibition against such marriages was violated, showing the law's historical application.

In Titus 1:6, elders must be 'husband of one wife' — this verse's restriction on priests marrying divorced women parallels the NT call for blameless leadership.