1 John 1:7

but if we walk in the light, as He is in the light, we have fellowship with one another, and the blood of Jesus his Son cleanses us from all sin.

Ephesians 1:7

in whom we have redemption through his blood, the remission of transgressions, according to the riches of his grace,

1 Timothy 6:16

he alone having immortality, inhabiting light unapproachable; whom no one of men has seen, or is able to see: to whom be honor and power eternal. Amen.

Hebrews 9:14

how much more shall the blood of Christ, who through the eternal Spirit offered up himself without spot to God, purify our conscience from dead works to serve the living God?

Revelation 1:5

and from Jesus Christ, who is the faithful witness, the firstbegotten of the dead, and the prince of the kings of the earth. To the one loving us with divine love, and having washed us from our sins in His own blood,

1 Peter 1:19

but by the precious blood of Christ, as a lamb without blemish and spotless:

1 John 1:3

that which we have seen and heard we also proclaim to you, in order that you may have fellowship with us. And our fellowship is indeed with the Father, and with his Son Jesus Christ.

Revelation 7:14

And I said unto him, My lord, thou knowest. And he said to me; These are those coming up out of great tribulation, who have washed their robes, and made them white in the blood of the Lamb.

John 1:29

On the following day he sees Jesus coming to him, and says, Behold the Lamb of God, that taketh away the sin of the world.

John 12:35

Then Jesus said to them, Yet a little while the light is with you. Walk about as you have the light, in order that the darkness may not overtake you: and he that walketh about in darkness does not know where he is going.

Romans 13:12

For the night is far spent, and the day is at hand. Therefore let us lay aside the works of the darkness, and let us put on the arms of the light.

1 Corinthians 6:11

And such were some of you: but you have washed, but you have been sanctified, but you have been justified in the name of the Lord Jesus Christ, and by the Spirit of our God.

Ephesians 5:8

For at one time ye were darkness, but now ye are light in the Lord: walk about as children of the light,

James 1:17

Every good gift and every perfect gift is from above, coming down from the Father of the lights, with whom there is no variation or shadow of change.

1 John 1:5

And the same message which we have heard from him, we also proclaim to you, that God is light and in him there is no darkness.

1 John 2:1-2

My little children, I write these things to you, in order that you may not sin. And if any one may sin, we have an Advocate with the Father, Jesus Christ the righteous:

1 John 2:9-10

The one saying that he is in the light, and hating his brother, is in the darkness until now.

1 John 5:6

He is the one having come through water and blood, Jesus Christ; not by water only, but by water and blood; the Spirit is the one who bears witness, because the Spirit is the truth.

1 John 5:8

the Spirit and the water, and blood: and these three are one.

2 John 1:4

I rejoice exceedingly because I have found some of thy children walking about in truth, as we received commandment from the Father.

3 John 1:4

I have no greater joy than this, that I may hear of my children walking about in truth.

Revelation 12:11

And they conquered him through the blood of the Lamb, and the word of their testimony; and with divine love they love not their life unto death.

Treasury of Scripture Knowledge

Summary

But if we walk in the light, as he is in the light, we have fellowship one with another, and the blood of Jesus Christ his Son cleanseth us from all sin.

General references

Bible References

If we

1 John 2:9
The one saying that he is in the light, and hating his brother, is in the darkness until now.
John 12:35
Then Jesus said to them, Yet a little while the light is with you. Walk about as you have the light, in order that the darkness may not overtake you: and he that walketh about in darkness does not know where he is going.
Romans 13:12
For the night is far spent, and the day is at hand. Therefore let us lay aside the works of the darkness, and let us put on the arms of the light.
Ephesians 5:8
For at one time ye were darkness, but now ye are light in the Lord: walk about as children of the light,
2 John 1:4
I rejoice exceedingly because I have found some of thy children walking about in truth, as we received commandment from the Father.
3 John 1:4
I have no greater joy than this, that I may hear of my children walking about in truth.

As

1 John 1:5
And the same message which we have heard from him, we also proclaim to you, that God is light and in him there is no darkness.
1 Timothy 6:16
he alone having immortality, inhabiting light unapproachable; whom no one of men has seen, or is able to see: to whom be honor and power eternal. Amen.
James 1:17
Every good gift and every perfect gift is from above, coming down from the Father of the lights, with whom there is no variation or shadow of change.

And the

1 John 2:1
My little children, I write these things to you, in order that you may not sin. And if any one may sin, we have an Advocate with the Father, Jesus Christ the righteous:
1 John 5:6
He is the one having come through water and blood, Jesus Christ; not by water only, but by water and blood; the Spirit is the one who bears witness, because the Spirit is the truth.
John 1:29
On the following day he sees Jesus coming to him, and says, Behold the Lamb of God, that taketh away the sin of the world.
1 Corinthians 6:11
And such were some of you: but you have washed, but you have been sanctified, but you have been justified in the name of the Lord Jesus Christ, and by the Spirit of our God.
Ephesians 1:7
in whom we have redemption through his blood, the remission of transgressions, according to the riches of his grace,
Hebrews 9:14
how much more shall the blood of Christ, who through the eternal Spirit offered up himself without spot to God, purify our conscience from dead works to serve the living God?
1 Peter 1:19
but by the precious blood of Christ, as a lamb without blemish and spotless:
Revelation 1:5
and from Jesus Christ, who is the faithful witness, the firstbegotten of the dead, and the prince of the kings of the earth. To the one loving us with divine love, and having washed us from our sins in His own blood,
Revelation 7:14
And I said unto him, My lord, thou knowest. And he said to me; These are those coming up out of great tribulation, who have washed their robes, and made them white in the blood of the Lamb.

General references

Philippians 1:5
for your fellowship in the gospel from the first clay until now;
Hebrews 8:12
Because I will be merciful unto their iniquities, and I will remember their sins no more.