1 John 1:7

But, if we live in the light [of righteousness] just like God [constantly] lives in the light [of righteousness], we can truly share a relationship with one another and [can know that] the blood of Jesus, God's Son, continues to cleanse [our spirits] from all of our sins.

Ephesians 1:7

In [fellowship with] Christ we have redemption [i.e., we have been bought back from Satan] through His blood, and have forgiveness of sins according to the abundance of God's unearned favor,

1 Timothy 6:16

He alone possesses immortality [Note: That is, only God possesses an eternal existence, with neither beginning nor ending. See John 5:26], and lives in unapproachable light. No one has seen Him, or can see Him. May there be honor and never ending power to Him. May it be so.

Hebrews 9:14

how much more will the blood of Christ, who through the eternal Holy Spirit [or, His eternal Spirit] offered Himself without [moral] blemish to God, cleanse our consciences from deeds which lead to [spiritual] death to serve the living God?

Revelation 1:5

[It is also] from Jesus Christ, who is the Faithful Witness [to the truth], the Firstborn from the dead [i.e., the first One raised never to die again], the Ruler of the kings of the world. May there be honor and power forever and ever to Christ, who loved us and released us from our sins by His blood [Note: Some manuscripts say "washed us" since the two words are spelled almost alike].

1 Peter 1:19

but with [the] precious blood of Christ, who represents an unblemished lamb, without defect.

1 John 1:3

We declare to you what we have seen and heard [concerning Christ], so that you also may share a relationship with us. And indeed, our fellowship is with the Father and with His Son Jesus Christ.

Revelation 7:14

And I answered him, "Sir, [surely] you know." And he said to me, "These are the people who have come through the terrible persecution, and they have washed their robes and made them white with the blood of the Lamb.

John 1:29

On the next day John [the Immerser] saw Jesus approaching him and said, "Look, [there is] the Lamb of God; He [will] take away the sin of the people of the world.

John 12:35

So, Jesus said to them, "The Light will be among you for only a little while [longer]. Walk around while you [still] have the Light [with you], before darkness surrounds you. For the person who walks around in darkness does not know where he is going.

Romans 13:12

The night is almost over and the day is near. So, we should stop doing the deeds of darkness [i.e., sinful things] and we should arm ourselves with the weapons of light [i.e., virtues for right living].

1 Corinthians 6:11

And some of you have practiced such things, but you were washed [i.e., from your sins. See Acts 22:16]; you were dedicated [i.e., set apart for God's service]; you were made right with God in the name [i.e., by the authority] of the Lord Jesus Christ, and by the Holy Spirit of our God.

Ephesians 5:8

for you people were once darkness [i.e., when living in sin], but now you are light in [fellowship with] the Lord. [So], live like people who belong to light [i.e., who live godly lives],

James 1:17

Every good thing that is given and every perfect gift [received] is from above, coming down from the Father of [heavenly] lights, with whom there can be no change or shifting shadow [i.e., God always remains the same].

1 John 1:5

And this is the message we heard from Him, and [now want to] announce to you: God is light [i.e. righteousness] and in His [very nature] there is no trace of darkness [i.e., evil].

1 John 2:1-2

My little children [i.e., dear ones], I am writing this to you so that you will not sin anymore. But if anyone does sin, we have Someone to go to the Father on our behalf; it is Jesus Christ, the [only] righteous One.

1 John 2:9-10

The person who claims to be living in [harmony with] the light [i.e., by obeying God's truth], and [yet] hates his brother is still [living] in the darkness [of sin].

1 John 5:6

This Jesus is the one whose coming [to earth was introduced] by water [at His immersion. See Matt. 3:13] and [completed] by blood [at His crucifixion, John 19:17-37]. He did not come by the water only, but by the water and by the blood. And it is the Holy Spirit who gives testimony [at both of these events], because the Holy Spirit is [always] the truth. [See John 16:13].

1 John 5:8

The Holy Spirit [through His Word], and the water [through His immersion] and the blood [through His crucifixion]; and these three agree together [in giving testimony about Him].

2 John 1:4

I was very happy when I learned that some of your children [i.e., members of the congregation] are living in [harmony with the] truth, just as we have been commanded to do by the Father.

3 John 1:4

I do not have any greater joy than to hear that my [spiritual] children are living according to the truth.

Revelation 12:11

And they [i.e., the brothers. See 6:9-11] gained the victory over Satan by the blood of the Lamb, and by [remaining true to] the message of their testimony. And they did not love their lives [so much that they refused] to die [for their faith].

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 person who claims to be living in [harmony with] the light [i.e., by obeying God's truth], and [yet] hates his brother is still [living] in the darkness [of sin].
John 12:35
So, Jesus said to them, "The Light will be among you for only a little while [longer]. Walk around while you [still] have the Light [with you], before darkness surrounds you. For the person who walks around in darkness does not know where he is going.
Romans 13:12
The night is almost over and the day is near. So, we should stop doing the deeds of darkness [i.e., sinful things] and we should arm ourselves with the weapons of light [i.e., virtues for right living].
Ephesians 5:8
for you people were once darkness [i.e., when living in sin], but now you are light in [fellowship with] the Lord. [So], live like people who belong to light [i.e., who live godly lives],
2 John 1:4
I was very happy when I learned that some of your children [i.e., members of the congregation] are living in [harmony with the] truth, just as we have been commanded to do by the Father.
3 John 1:4
I do not have any greater joy than to hear that my [spiritual] children are living according to the truth.

As

1 John 1:5
And this is the message we heard from Him, and [now want to] announce to you: God is light [i.e. righteousness] and in His [very nature] there is no trace of darkness [i.e., evil].
1 Timothy 6:16
He alone possesses immortality [Note: That is, only God possesses an eternal existence, with neither beginning nor ending. See John 5:26], and lives in unapproachable light. No one has seen Him, or can see Him. May there be honor and never ending power to Him. May it be so.
James 1:17
Every good thing that is given and every perfect gift [received] is from above, coming down from the Father of [heavenly] lights, with whom there can be no change or shifting shadow [i.e., God always remains the same].

And the

1 John 2:1
My little children [i.e., dear ones], I am writing this to you so that you will not sin anymore. But if anyone does sin, we have Someone to go to the Father on our behalf; it is Jesus Christ, the [only] righteous One.
1 John 5:6
This Jesus is the one whose coming [to earth was introduced] by water [at His immersion. See Matt. 3:13] and [completed] by blood [at His crucifixion, John 19:17-37]. He did not come by the water only, but by the water and by the blood. And it is the Holy Spirit who gives testimony [at both of these events], because the Holy Spirit is [always] the truth. [See John 16:13].
John 1:29
On the next day John [the Immerser] saw Jesus approaching him and said, "Look, [there is] the Lamb of God; He [will] take away the sin of the people of the world.
1 Corinthians 6:11
And some of you have practiced such things, but you were washed [i.e., from your sins. See Acts 22:16]; you were dedicated [i.e., set apart for God's service]; you were made right with God in the name [i.e., by the authority] of the Lord Jesus Christ, and by the Holy Spirit of our God.
Ephesians 1:7
In [fellowship with] Christ we have redemption [i.e., we have been bought back from Satan] through His blood, and have forgiveness of sins according to the abundance of God's unearned favor,
Hebrews 9:14
how much more will the blood of Christ, who through the eternal Holy Spirit [or, His eternal Spirit] offered Himself without [moral] blemish to God, cleanse our consciences from deeds which lead to [spiritual] death to serve the living God?
1 Peter 1:19
but with [the] precious blood of Christ, who represents an unblemished lamb, without defect.
Revelation 1:5
[It is also] from Jesus Christ, who is the Faithful Witness [to the truth], the Firstborn from the dead [i.e., the first One raised never to die again], the Ruler of the kings of the world. May there be honor and power forever and ever to Christ, who loved us and released us from our sins by His blood [Note: Some manuscripts say "washed us" since the two words are spelled almost alike].
Revelation 7:14
And I answered him, "Sir, [surely] you know." And he said to me, "These are the people who have come through the terrible persecution, and they have washed their robes and made them white with the blood of the Lamb.

General references

Philippians 1:5
for your sharing [with me] in [carrying on] the work of the Gospel from the first day [I left there] until now. [See 4:14-16].
Hebrews 8:12
For I will be merciful to their wickedness [i.e., by forgiving them] and I will not remember their sins anymore."