Romans 5:10-11

If, when we were God's enemies, we were reconciled to him through the death of his Son, it is far more certain that now that we are reconciled we shall be saved through sharing in his life!

Hebrews 9:12

taking with him no blood of goats and calves, but his own, and secured our permanent deliverance.

Hebrews 9:26

for then he would have had to suffer death over and over, ever since the creation of the world. But, as it is, once for all at the close of the age he has appeared, to put an end to sin by his sacrifice.

Hebrews 10:10

And it is through his doing of God's will that we have been once for all purified from sin through the offering of the body of Jesus Christ in sacrifice.

Hebrews 10:14

For by that one sacrifice he has forever qualified those who are purified from sin to approach God.

1 John 2:2

He is himself an atoning sacrifice for our sins, and not only for ours but also for the whole world.

1 John 4:10

The love consists not in our having loved God, but in his loving us and sending his Son as an atoning sacrifice for our sins.

1 John 5:6

It was he, Jesus Christ himself, who came in water and in blood; not in water only, but in water and in blood. The Spirit also testifies to this, for the Spirit is truth.

Treasury of Scripture Knowledge

Summary

And ye shall do no work in that same day: for it is a day of atonement, to make an atonement for you before the LORD your God.

Bible References

General references

Romans 5:10
If, when we were God's enemies, we were reconciled to him through the death of his Son, it is far more certain that now that we are reconciled we shall be saved through sharing in his life!
Hebrews 9:12
taking with him no blood of goats and calves, but his own, and secured our permanent deliverance.
Hebrews 10:10
And it is through his doing of God's will that we have been once for all purified from sin through the offering of the body of Jesus Christ in sacrifice.
1 John 2:2
He is himself an atoning sacrifice for our sins, and not only for ours but also for the whole world.
1 John 4:10
The love consists not in our having loved God, but in his loving us and sending his Son as an atoning sacrifice for our sins.
1 John 5:6
It was he, Jesus Christ himself, who came in water and in blood; not in water only, but in water and in blood. The Spirit also testifies to this, for the Spirit is truth.