Exodus 30:1 commands making the incense altar, which is the very altar where atonement is made in this verse.

Exodus 29:36 describes daily atonement for the bronze altar during consecration, while this requires annual atonement on the incense altar.

Leviticus 16:5 specifies the animals for the Day of Atonement sin offering, which is the same yearly atonement referenced here.

Leviticus 16:6 describes the high priest's own sin offering, a detail of the yearly atonement ritual.

Leviticus 16:18 describes the Day of Atonement blood application on the horns of the altar, directly detailing the ritual mentioned here.

Hebrews 9:7 describes the high priest entering the Holy of Holies once yearly with blood, directly echoing the yearly atonement on the incense altar.

Hebrews 9:23 interprets the earthly atonement as a pattern for heavenly purification, with the yearly ritual as that pattern.

Hebrews 9:25 contrasts Christ's once-for-all sacrifice with the repeated yearly atonement commanded in this verse.

Leviticus 16:34 establishes the yearly atonement as a perpetual statute, directly paralleling the once-a-year command here.

Hebrews 10:3 points out that this yearly atonement merely reminds of sin, contrasting with Christ's once-for-all sacrifice.

Leviticus 16:29 specifies the date for the annual atonement—the tenth day of the seventh month—which is the 'once a year' referred to here.

Leviticus 23:27 identifies the tenth day of the seventh month as the Day of Atonement, the same annual event where the incense altar is purified here.

Leviticus 16:30 explains that this day makes atonement for the people to cleanse them, broadening the altar-focused atonement here to the entire congregation.

1 Chronicles 6:49 summarizes the priestly duty of atonement on the altar, echoing the annual atonement ritual commanded here.

Hebrews 9:22 states the necessity of blood for remission, which underlies the yearly atonement ritual commanded here.