Galatians 6:3

If a man fancies himself to be somebody when he is really nobody he is deceiving himself.

1 Corinthians 3:18

Let no one deceive himself. If any one of you supposes that he is wise in the philosophy of the present age, let him become foolish, so that he may be wise.

2 Corinthians 12:11

I am become a fool??ou have forced me to; for you yourselves ought to have been my vindicators. In no respect am I inferior to these superapostolic apostles, even though I am nothing.

Romans 12:3

For, through the grace that was given to me, I tell every man among you not to think of himself more highly than he ought to think; but so to think, as to think soberly, according to the measure of faith which God has given him.

1 Corinthians 8:2

If a man thinks that he already has knowledge, he does not yet truly know as he ought to know;

Galatians 2:6

But those in authority??hat they once were makes no difference to me; God is no respecter of persons??hose I say who were in authority had no additions to make my message.

Luke 18:11

"The Pharisee stood apart and thus began to pray by himself. "'O God, I thank thee that I am not like the rest of men, extortioners, rogues, adulterers, or even like this tax gatherer;

Romans 12:16

Have full sympathy with one another. Set not your minds on high affairs, but associate with lowly folk. Do not be wise in your own conceits.

1 Corinthians 13:2

Though I have the gift of prophecy and understand all mysteries and all knowledge, and have all faith, so that I could remove mountains, but have not love, I am nothing.

2 Corinthians 3:5

Not that I am sufficient in myself to reach any conclusion in my own wisdom; but my sufficiency is from God.

2 Timothy 3:13

But wicked men and impostors will go on from bad to worse, deceiving others, and being themselves deceived.

James 1:22

And become doers of the Word, and not merely hearers, deceiving yourselves.

James 1:26

If a man thinks himself to be religious, and yet does not bridle his tongue, but deceives his own religion,

1 John 1:8

If we say, "We have no sin," we are deceiving ourselves and the truth is not in us.

Treasury of Scripture Knowledge

Summary

For if a man think himself to be something, when he is nothing, he deceiveth himself.

General references

Bible References

If

Galatians 2:6
But those in authority??hat they once were makes no difference to me; God is no respecter of persons??hose I say who were in authority had no additions to make my message.
Luke 18:11
"The Pharisee stood apart and thus began to pray by himself. "'O God, I thank thee that I am not like the rest of men, extortioners, rogues, adulterers, or even like this tax gatherer;
Romans 12:3
For, through the grace that was given to me, I tell every man among you not to think of himself more highly than he ought to think; but so to think, as to think soberly, according to the measure of faith which God has given him.
1 Corinthians 3:18
Let no one deceive himself. If any one of you supposes that he is wise in the philosophy of the present age, let him become foolish, so that he may be wise.
1 Corinthians 8:2
If a man thinks that he already has knowledge, he does not yet truly know as he ought to know;

When

1 Corinthians 13:2
Though I have the gift of prophecy and understand all mysteries and all knowledge, and have all faith, so that I could remove mountains, but have not love, I am nothing.
2 Corinthians 3:5
Not that I am sufficient in myself to reach any conclusion in my own wisdom; but my sufficiency is from God.
2 Corinthians 12:11
I am become a fool??ou have forced me to; for you yourselves ought to have been my vindicators. In no respect am I inferior to these superapostolic apostles, even though I am nothing.

He deceiveth

1 Corinthians 3:18
Let no one deceive himself. If any one of you supposes that he is wise in the philosophy of the present age, let him become foolish, so that he may be wise.
2 Timothy 3:13
But wicked men and impostors will go on from bad to worse, deceiving others, and being themselves deceived.
James 1:22
And become doers of the Word, and not merely hearers, deceiving yourselves.
1 John 1:8
If we say, "We have no sin," we are deceiving ourselves and the truth is not in us.

General references

1 Corinthians 3:7
So neither is he who planted anything, nor he who watered, but God alone, who is making the seed grow.