1 John 1:6

If we say that we have fellowship with Him and yet walk in the darkness [of sin], we lie and do not practice the truth;

1 John 4:20

If anyone says, “I love God,” and hates (works against) his [Christian] brother he is a liar; for the one who does not love his brother whom he has seen, cannot love God whom he has not seen.

1 John 1:10

If we say that we have not sinned [refusing to admit acts of sin], we make Him [out to be] a liar [by contradicting Him] and His word is not in us.

John 3:19-21

This is the judgment [that is, the cause for indictment, the test by which people are judged, the basis for the sentence]: the Light has come into the world, and people loved the darkness rather than the Light, for their deeds were evil.

John 12:35

So Jesus said to them, “The Light is among you [only] a little while longer. Walk while you have the Light [keep on living by it], so that darkness will not overtake you. He who walks in the darkness does not know where he is going [he is drifting aimlessly].

1 John 2:4

Whoever says, “I have come to know Him,” but does not habitually keep [focused on His precepts and obey] His commandments (teachings), is a liar, and the truth [of the divine word] is not in him.

Revelation 3:17-18

Because you say, “I am rich, and have prospered and grown wealthy, and have need of nothing,” and you do not know that you are wretched and miserable and poor and blind and naked [without hope and in great need],

Psalm 5:4-6


For You are not a God who takes pleasure in wickedness;
No evil [person] dwells with You.

Psalm 82:5


The rulers do not know nor do they understand;
They walk on in the darkness [of complacent satisfaction];
All the foundations of the earth [the fundamental principles of the administration of justice] are shaken.

Psalm 94:20


Can a throne of destruction be allied with You,
One which frames and devises mischief by decree [under the sacred name of law]?

Proverbs 2:13


From those who leave the paths of uprightness
To walk in the ways of darkness;

Proverbs 4:18-19


But the path of the just (righteous) is like the light of dawn,
That shines brighter and brighter until [it reaches its full strength and glory in] the perfect day.

Matthew 7:22

Many will say to Me on that day [when I judge them], ‘Lord, Lord, have we not prophesied in Your name, and driven out demons in Your name, and done many miracles in Your name?’

John 8:12

Once more Jesus addressed the crowd. He said, I am the Light of the world. He who follows Me will not walk in the darkness, but will have the Light of life.”

John 8:44-45

You are of your father the devil, and it is your will to practice the desires [which are characteristic] of your father. He was a murderer from the beginning, and does not stand in the truth because there is no truth in him. When he lies, he speaks what is natural to him, for he is a liar and the father of lies and half-truths.

John 11:10

But if anyone walks in the night, he stumbles, because there is no light in him.”

John 12:46

I have come as Light into the world, so that everyone who believes and trusts in Me [as Savior—all those who anchor their hope in Me and rely on the truth of My message] will not continue to live in darkness.

2 Corinthians 6:14-16

Do not be unequally bound together with unbelievers [do not make mismatched alliances with them, inconsistent with your faith]. For what partnership can righteousness have with lawlessness? Or what fellowship can light have with darkness?

1 Timothy 4:2

[misled] by the hypocrisy of liars whose consciences are seared as with a branding iron [leaving them incapable of ethical functioning],

James 2:14

What is the benefit, my fellow believers, if someone claims to have faith but has no [good] works [as evidence]? Can that [kind of] faith save him? [No, a mere claim of faith is not sufficient—genuine faith produces good works.]

James 2:16

and one of you says to them, “Go in peace [with my blessing], [keep] warm and feed yourselves,” but he does not give them the necessities for the body, what good does that do?

James 2:18

But someone may say, “You [claim to] have faith and I have [good] works; show me your [alleged] faith without the works [if you can], and I will show you my faith by my works [that is, by what I do].”

1 John 1:3

what we have seen and heard we also proclaim to you, so that you too may have fellowship [as partners] with us. And indeed our fellowship [which is a distinguishing mark of born-again believers] is with the Father, and with His Son Jesus Christ.

1 John 1:8

If we say we have no sin [refusing to admit that we are sinners], we delude ourselves and the truth is not in us. [His word does not live in our hearts.]

1 John 2:9-11

The one who says he is in the Light [in consistent fellowship with Christ] and yet habitually hates (works against) his brother [in Christ] is in the darkness until now.

Treasury of Scripture Knowledge

Summary

If we say that we have fellowship with him, and walk in darkness, we lie, and do not the truth:

Do not

Bible References

If

1 John 1:8
If we say we have no sin [refusing to admit that we are sinners], we delude ourselves and the truth is not in us. [His word does not live in our hearts.]
1 John 2:4
Whoever says, “I have come to know Him,” but does not habitually keep [focused on His precepts and obey] His commandments (teachings), is a liar, and the truth [of the divine word] is not in him.
1 John 4:20
If anyone says, “I love God,” and hates (works against) his [Christian] brother he is a liar; for the one who does not love his brother whom he has seen, cannot love God whom he has not seen.
Matthew 7:22
Many will say to Me on that day [when I judge them], ‘Lord, Lord, have we not prophesied in Your name, and driven out demons in Your name, and done many miracles in Your name?’
James 2:14
What is the benefit, my fellow believers, if someone claims to have faith but has no [good] works [as evidence]? Can that [kind of] faith save him? [No, a mere claim of faith is not sufficient—genuine faith produces good works.]
Revelation 3:17
Because you say, “I am rich, and have prospered and grown wealthy, and have need of nothing,” and you do not know that you are wretched and miserable and poor and blind and naked [without hope and in great need],

Fellowship

1 John 1:3
what we have seen and heard we also proclaim to you, so that you too may have fellowship [as partners] with us. And indeed our fellowship [which is a distinguishing mark of born-again believers] is with the Father, and with His Son Jesus Christ.
Psalm 5:4

For You are not a God who takes pleasure in wickedness;
No evil [person] dwells with You.
Psalm 94:20

Can a throne of destruction be allied with You,
One which frames and devises mischief by decree [under the sacred name of law]?
2 Corinthians 6:14
Do not be unequally bound together with unbelievers [do not make mismatched alliances with them, inconsistent with your faith]. For what partnership can righteousness have with lawlessness? Or what fellowship can light have with darkness?

We lie

1 John 1:10
If we say that we have not sinned [refusing to admit acts of sin], we make Him [out to be] a liar [by contradicting Him] and His word is not in us.
1 John 4:20
If anyone says, “I love God,” and hates (works against) his [Christian] brother he is a liar; for the one who does not love his brother whom he has seen, cannot love God whom he has not seen.
John 8:44
You are of your father the devil, and it is your will to practice the desires [which are characteristic] of your father. He was a murderer from the beginning, and does not stand in the truth because there is no truth in him. When he lies, he speaks what is natural to him, for he is a liar and the father of lies and half-truths.
1 Timothy 4:2
[misled] by the hypocrisy of liars whose consciences are seared as with a branding iron [leaving them incapable of ethical functioning],

Do not

John 3:21
But whoever practices truth [and does what is right—morally, ethically, spiritually] comes to the Light, so that his works may be plainly shown to be what they are—accomplished in God [divinely prompted, done with God’s help, in dependence on Him].”