1 John 1:6

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

1 John 4:20

If a man say, "I love God," and yet hate his brother, he is a liar. For how can he that loveth not his brother whom he hath seen, love God whom he hath not seen?

1 John 1:10

If we say we have not sinned, we make him a liar, and his word is not in us.

John 3:19-21

And this is the condemnation: that light is come into the world, and the men have loved darkness more than light, because their deeds were evil.

John 12:35

Then Jesus said unto them, "Yet a little while is the light with you: walk while ye have light, lest the darkness come on you. He that walketh in the dark, knoweth not whither he goeth.

1 John 2:4

He that saith, "I know him," and yet keepeth not his commandments, is a liar, and the verity is not in him.

Revelation 3:17-18

because thou sayest thou art rich and increased with goods, and hast need of nothing, and knowest not how thou art wretched and miserable, poor, blind, and naked.

Psalm 5:4-6

For thou art the God that hast no pleasure in wickedness; neither shall any evil dwell with thee.

Psalm 82:5

They will not be learned nor understand, but walk on still in darkness; all the foundations of the earth are out of course.

Psalm 94:20

Wilt thou have anything to do with the stool of wickedness, which imagineth mischief as a law?

Proverbs 2:13

From such as leave the high street, and walk in the ways of darkness;

Proverbs 4:18-19

The path of the righteous shineth as the light, and is ever brighter and brighter unto the perfect day.

Matthew 7:22

Many will say to me in that day, 'Lord, Lord, have we not in thy name prophesied? and in thy name have cast out devils? and in thy name have done many miracles?'

John 8:12

Then spake Jesus again unto them, saying, "I am the light of the world. He that followeth me shall not walk in darkness: but shall have the light of life."

John 8:44-45

Ye are of your father the devil, and the lusts of your father, ye will do. He was a murderer from the beginning; And abode not in the truth, because there is no truth in him. When he speaketh a lie, then speaketh he of his own. For he is a liar, and the father thereof.

John 11:10

But if a man walk in the night he stumbleth, because there is no light in him."

John 12:46

I am come a light into the world, that whosoever believeth on me should not abide in darkness:

2 Corinthians 6:14-16

Set yourselves therefore at large, and bear not a stranger's yoke with the unbelievers. For what fellowship hath righteousness with unrighteousness? What company hath light with darkness?

1 Timothy 4:2

and devilish doctrine of them which speak false through hypocrisy, and have their consciences marked with a hot iron,

James 2:14

What availeth it, my brethren, though a man say he hath faith, when he hath no deeds? Can faith save him?

James 2:16

and one of you say unto them, "Depart in peace, God send you warmness and food," notwithstanding ye give them not those things which are needful to the body: what helpeth it them?

James 2:18

Yea, and a man might say, "Thou hast faith, and I have deeds: Show me thy faith by thy deeds: and I will show thee my faith by my deeds."

1 John 1:3

That which we have seen and heard declare we unto you, that ye may have fellowship with us, and that our fellowship may be with the father, and his son Jesus Christ.

1 John 1:8

If we say that we have no sin, we deceive ourselves, and truth is not in us.

1 John 2:9-11

He that saith how that he is in the light, and yet hateth his brother, is in darkness even until this time.

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 that we have no sin, we deceive ourselves, and truth is not in us.
1 John 2:4
He that saith, "I know him," and yet keepeth not his commandments, is a liar, and the verity is not in him.
1 John 4:20
If a man say, "I love God," and yet hate his brother, he is a liar. For how can he that loveth not his brother whom he hath seen, love God whom he hath not seen?
Matthew 7:22
Many will say to me in that day, 'Lord, Lord, have we not in thy name prophesied? and in thy name have cast out devils? and in thy name have done many miracles?'
James 2:14
What availeth it, my brethren, though a man say he hath faith, when he hath no deeds? Can faith save him?
Revelation 3:17
because thou sayest thou art rich and increased with goods, and hast need of nothing, and knowest not how thou art wretched and miserable, poor, blind, and naked.

Fellowship

1 John 1:3
That which we have seen and heard declare we unto you, that ye may have fellowship with us, and that our fellowship may be with the father, and his son Jesus Christ.
Psalm 5:4
For thou art the God that hast no pleasure in wickedness; neither shall any evil dwell with thee.
Psalm 94:20
Wilt thou have anything to do with the stool of wickedness, which imagineth mischief as a law?
2 Corinthians 6:14
Set yourselves therefore at large, and bear not a stranger's yoke with the unbelievers. For what fellowship hath righteousness with unrighteousness? What company hath light with darkness?

We lie

1 John 1:10
If we say we have not sinned, we make him a liar, and his word is not in us.
1 John 4:20
If a man say, "I love God," and yet hate his brother, he is a liar. For how can he that loveth not his brother whom he hath seen, love God whom he hath not seen?
John 8:44
Ye are of your father the devil, and the lusts of your father, ye will do. He was a murderer from the beginning; And abode not in the truth, because there is no truth in him. When he speaketh a lie, then speaketh he of his own. For he is a liar, and the father thereof.
1 Timothy 4:2
and devilish doctrine of them which speak false through hypocrisy, and have their consciences marked with a hot iron,

Do not

John 3:21
But he that doth truth, cometh to the light, that his deeds might be known, how that they are wrought in God."