Hebrews 9:22

and indeed according to the law almost every thing is purified with blood, without the effusion of which, there is no remission of sins.

Hebrews 10:4-10

And indeed it is not possible that the blood of bulls and of goats, should take away the guilt of sin.

Treasury of Scripture Knowledge

Summary

And the Levites shall lay their hands upon the heads of the bullocks: and thou shalt offer the one for a sin offering, and the other for a burnt offering, unto the LORD, to make an atonement for the Levites.

The one

Atonement

Bible References

The one

Hebrews 10:4
And indeed it is not possible that the blood of bulls and of goats, should take away the guilt of sin.

Atonement

Hebrews 9:22
and indeed according to the law almost every thing is purified with blood, without the effusion of which, there is no remission of sins.