Hebrews 1:3

He is the radiance of his glory and the exact representation of his being, and upholds all things by the word of his power. When he had made purification for sins, he sat down at the right hand of the Majesty on high,

Hebrews 9:7

But into the second only the high priest goes, and he but once a year, and not without taking blood, which he offers for himself and for the sins of the people committed in ignorance.

Hebrews 9:22-23

Indeed, under the law almost everything is cleansed with blood, and without the shedding of blood there is no forgiveness of sins.

Hebrews 9:25

Nor was it that he should offer himself again and again, as the high priest enters the holy place year by 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.

Bible References

Aaron

Hebrews 1:3
He is the radiance of his glory and the exact representation of his being, and upholds all things by the word of his power. When he had made purification for sins, he sat down at the right hand of the Majesty on high,
Hebrews 9:7
But into the second only the high priest goes, and he but once a year, and not without taking blood, which he offers for himself and for the sins of the people committed in ignorance.