1 John 1:8

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

James 3:2

For in many things we all offend. If any man offend not in word, he is a perfect man, and capable of reining in the whole body.

1 John 2:4

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

Romans 3:23

for all have sinned, and come short of the glory of God;

1 Corinthians 3:18

Let no man deceive himself. If any man among you thinketh himself a wise man in this world, let him become a fool, that he may be wise.

Galatians 6:3

For if any man conceits that he is something when he is nothing, he deceiveth himself.

1 Timothy 6:5

perverse wranglings of men corrupt in mind, and destitute of truth, who think to make gain of godliness; depart from such men.

2 Timothy 3:13

But wicked men and impostors will proceed from bad to worse, deceiving and deceived.

James 1:22

But be ye doers of the word, and not hearers only, deceiving yourselves by false reasoning.

James 1:26

If any man thinks he is a religious character among you, and bridleth not his tongue, but deceiveth his own heart, this man's religion is vain.

2 Peter 2:13

receiving the recompence of iniquity, counting daily luxury their pleasure; spots and blemishes, when they feast together with you; riotously indulging in their own delusions:

1 John 1:6

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

1 John 1:10

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

1 John 3:5-6

And ye know that he was manifested, that he might take away our sins; and in him there is no sin.

2 John 1:2

because of the truth which abideth in us, and shall be with us for ever:

3 John 1:3

I rejoiced greatly when the brethren came, and bore witness to thy truth, even as thou walkest in the truth.

Treasury of Scripture Knowledge

Summary

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

General references

Bible References

Say

1 John 1:6
If we say that we have communion with him, and walk in darkness, we lie, and practise not the truth:
1 John 3:5
And ye know that he was manifested, that he might take away our sins; and in him there is no sin.
Romans 3:23
for all have sinned, and come short of the glory of God;
James 3:2
For in many things we all offend. If any man offend not in word, he is a perfect man, and capable of reining in the whole body.

We deceive

1 Corinthians 3:18
Let no man deceive himself. If any man among you thinketh himself a wise man in this world, let him become a fool, that he may be wise.
Galatians 6:3
For if any man conceits that he is something when he is nothing, he deceiveth himself.
2 Timothy 3:13
But wicked men and impostors will proceed from bad to worse, deceiving and deceived.
James 1:22
But be ye doers of the word, and not hearers only, deceiving yourselves by false reasoning.
2 Peter 2:13
receiving the recompence of iniquity, counting daily luxury their pleasure; spots and blemishes, when they feast together with you; riotously indulging in their own delusions:

General references

Hebrews 8:12
For I will be placable to their unrighteousnesses and their sins, and their iniquities I will never more remember."