Hebrews 1:3
This Son expresses the radiance of God's splendor and represents His very Being, and He sustains everything by His powerful word. After He had provided cleansing for [man's] sins, He sat down at the right side of the Majesty [i.e., God] on high [i.e., in heaven].
Hebrews 9:7
But [only] once a year the head priest goes alone into the inner room [i.e., Holy of Holies], and never without [animal] blood, which he offers [as a sacrifice] for himself and for the sins done in ignorance by the people.
Hebrews 9:22-23
And, according to the law of Moses, almost everything is [ceremonially] cleansed by blood, for there is no forgiveness [of sins] apart from the shedding of blood.
Hebrews 9:25
Nor was it necessary for Him to offer Himself [to God] often, like the head priest does, who enters the Holy of Holies year after year with blood that belongs to others [i.e., the blood of animal sacrifices].