Hebrews 1:3

who being a brightness from his glory and an image of his being, and upholding all things by the word of his power, when he had by himself accomplished a cleansing of sins, sat down on the right hand of the Majesty on high;

Hebrews 9:7

but into the second the highpriest alone once every year, not without blood, which he offereth for himself, and for the errors of the people;

Hebrews 9:22-23

And almost all things are according to the Law purified with blood, and without shedding of blood there is no remission.

Hebrews 9:25

Nor yet to make an offering of himself many times, as the highpriest entereth into the holy place every year with blood of others;

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
who being a brightness from his glory and an image of his being, and upholding all things by the word of his power, when he had by himself accomplished a cleansing of sins, sat down on the right hand of the Majesty on high;
Hebrews 9:7
but into the second the highpriest alone once every year, not without blood, which he offereth for himself, and for the errors of the people;