1 John 1:6

If, while we are living in darkness, we profess to have fellowship with Him, we speak falsely and are not adhering to the truth.

1 John 4:20

If any one says that he loves God, while he hates his brother man, he is a liar; for he who does not love his brother man whom he has seen, cannot love God whom he has not seen.

1 John 1:10

If we deny that we have sinned, we make Him a liar, and His Message has no place in our hearts.

John 3:19-21

And this is the test by which men are judged--the Light has come into the world, and men loved the darkness more than they loved the Light, because their deeds were wicked.

John 12:35

"Yet a little while," He replied, "the light is among you. Be faithful to the light that you have, for fear darkness should overtake you; for a man who walks in the dark does not know where he is going.

1 John 2:4

He who professes to know Him, and yet does not obey His commands, is a liar, and the truth has no place in his heart.

Revelation 3:17-18

You say, I am rich, and have wealth stored up, and I stand in need of nothing; and you do not know that if there is a wretched creature it is *you* -- pitiable, poor, blind, naked.

Matthew 7:22

Many will say to me on that day, "'Master, Master, have we not prophesied in Thy name, and in Thy name expelled demons, and in Thy name performed many mighty works?'

John 8:12

Once more Jesus addressed them. "I am the Light of the world," He said; "the man who follows me shall certainly not walk in the dark, but shall have the light of Life."

John 8:44-45

The father whose sons you are is the Devil; and you desire to do what gives him pleasure. *He* was a murderer from the beginning, and does not stand firm in the truth--for there is no truth in him. Whenever he utters his lie, he utters it out of his own store; for he is a liar, and the father of lies.

John 11:10

But if a man walks by night, he does stumble, because the light is not in him."

John 12:46

I have come like light into the world, in order that no one who believes in me may remain in the dark.

2 Corinthians 6:14-16

Do not come into close association with unbelievers, like oxen yoked with asses. For what is there in common between righteousness and lawlessness? Or what partnership has light with darkness?

1 Timothy 4:2

through the hypocrisy of men who teach falsely and have their own consciences seared as with a hot iron;

James 2:14

What good is it, my brethren, if a man professes to have faith, and yet his actions do not correspond? Can such faith save him?

James 2:16

and one of you says to them, "I wish you well; keep yourselves warm and well fed," and yet you do not give them what they need; what is the use of that?

James 2:18

Nay, some one will say, "You have faith, I have actions: prove to me your faith apart from corresponding actions and I will prove mine to you by my actions.

1 John 1:3

that which we have seen and listened to we now announce to you also, in order that you also may have fellowship in it with us, and this fellowship with us is fellowship with the Father and with His Son Jesus Christ.

1 John 1:8

If we claim to be already free from sin, we lead ourselves astray and the truth has no place in our hearts.

1 John 2:9-11

Any one who professes to be in the light and yet hates his brother man is still in darkness.

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 claim to be already free from sin, we lead ourselves astray and the truth has no place in our hearts.
1 John 2:4
He who professes to know Him, and yet does not obey His commands, is a liar, and the truth has no place in his heart.
1 John 4:20
If any one says that he loves God, while he hates his brother man, he is a liar; for he who does not love his brother man whom he has seen, cannot love God whom he has not seen.
Matthew 7:22
Many will say to me on that day, "'Master, Master, have we not prophesied in Thy name, and in Thy name expelled demons, and in Thy name performed many mighty works?'
James 2:14
What good is it, my brethren, if a man professes to have faith, and yet his actions do not correspond? Can such faith save him?
Revelation 3:17
You say, I am rich, and have wealth stored up, and I stand in need of nothing; and you do not know that if there is a wretched creature it is *you* -- pitiable, poor, blind, naked.

Fellowship

1 John 1:3
that which we have seen and listened to we now announce to you also, in order that you also may have fellowship in it with us, and this fellowship with us is fellowship with the Father and with His Son Jesus Christ.
2 Corinthians 6:14
Do not come into close association with unbelievers, like oxen yoked with asses. For what is there in common between righteousness and lawlessness? Or what partnership has light with darkness?

We lie

1 John 1:10
If we deny that we have sinned, we make Him a liar, and His Message has no place in our hearts.
1 John 4:20
If any one says that he loves God, while he hates his brother man, he is a liar; for he who does not love his brother man whom he has seen, cannot love God whom he has not seen.
John 8:44
The father whose sons you are is the Devil; and you desire to do what gives him pleasure. *He* was a murderer from the beginning, and does not stand firm in the truth--for there is no truth in him. Whenever he utters his lie, he utters it out of his own store; for he is a liar, and the father of lies.
1 Timothy 4:2
through the hypocrisy of men who teach falsely and have their own consciences seared as with a hot iron;

Do not

John 3:21
But he who does what is honest and right comes to the light, in order that his actions may be plainly shown to have been done in God.