Exodus 30:10

And Aaron shall make atonement for its horns once in the year: with the blood of the sin-offering of atonement shall he make atonement for it, once in the year, throughout your generations: it is most holy to Jehovah.

Leviticus 16:18

And he shall go out unto the altar which is before Jehovah, and make atonement for it; and shall take of the blood of the bullock, and of the goat, and put it upon the horns of the altar round about;

Leviticus 23:27

Also on the tenth of this seventh month is the day of the atonement: a holy convocation shall it be unto you; and ye shall afflict your souls, and present an offering by fire to Jehovah.

Exodus 29:36-37

And thou shalt offer every day a bullock as a sin-offering for atonement; and the altar shalt thou cleanse from sin, by making atonement for it, and shalt anoint it, to hallow it.

Leviticus 16:5-6

And of the assembly of the children of Israel shall he take two bucks of the goats for a sin-offering, and one ram for a burnt-offering.

Leviticus 16:29-30

And this shall be an everlasting statute unto you. In the seventh month, on the tenth of the month, ye shall afflict your souls, and do no work at all, the home-born, and the stranger that sojourneth among you;

Hebrews 1:3

who being the effulgence of his glory and the expression of his substance, and upholding all things by the word of his power, having made by himself the purification of sins, set himself down on the right hand of the greatness on high,

Hebrews 9:7

but into the second, the high priest only, once a year, not without blood, which he offers for himself and for the errors of the people:

Hebrews 9:22-23

and almost all things are purified with blood according to the law, and without blood-shedding there is no remission.

Hebrews 9:25

nor in order that he should offer himself often, as the high priest enters into the holy places every year with blood not his own;

Treasury of Scripture Knowledge

Summary

And Aaron shall make an atonement upon the horns of it once in a year with the blood of the sin offering of atonements: once in the year shall he make atonement upon it throughout your generations: it is most holy unto the LORD.

Sin offering

General references

Bible References

Aaron

Exodus 29:36
And thou shalt offer every day a bullock as a sin-offering for atonement; and the altar shalt thou cleanse from sin, by making atonement for it, and shalt anoint it, to hallow it.
Leviticus 16:18
And he shall go out unto the altar which is before Jehovah, and make atonement for it; and shall take of the blood of the bullock, and of the goat, and put it upon the horns of the altar round about;
Leviticus 23:27
Also on the tenth of this seventh month is the day of the atonement: a holy convocation shall it be unto you; and ye shall afflict your souls, and present an offering by fire to Jehovah.
Hebrews 1:3
who being the effulgence of his glory and the expression of his substance, and upholding all things by the word of his power, having made by himself the purification of sins, set himself down on the right hand of the greatness on high,
Hebrews 9:7
but into the second, the high priest only, once a year, not without blood, which he offers for himself and for the errors of the people:

Sin offering

Leviticus 16:5
And of the assembly of the children of Israel shall he take two bucks of the goats for a sin-offering, and one ram for a burnt-offering.

General references

Leviticus 16:18
And he shall go out unto the altar which is before Jehovah, and make atonement for it; and shall take of the blood of the bullock, and of the goat, and put it upon the horns of the altar round about;