2 Corinthians 12:6

For though I should choose to boast, I would not be void of understanding: for I will speak the truth. But I forbear, lest any one should think of me more than what he sees me to be, or what he hears of me.

2 Corinthians 11:16

I say again, let no one think that I am without understanding; but if so, even as one without understanding bear with me, that I also may boast a little.

Romans 9:1

I speak the truth in Christ, I lie not, my conscience bearing me testimony in the Holy Spirit,

1 Corinthians 3:5

Who, then, is Paul? and who is Apollos? Ministers by whom you have believed, even as the Lord gave to each one.

1 Corinthians 3:9-10

For we are fellow-laborers for God: you are God's field, you are God's building.

2 Corinthians 1:18

But God is true; for our preaching to you was not yes and no:

2 Corinthians 5:13

For if we be beside our selves, it is for God; or, if we be of sound mind, it is for you.

2 Corinthians 10:8-10

For though I should boast even, somewhat more abundantly of our authority, which the Lord has given us for edification, and not for your destruction, I would not be ashamed:

2 Corinthians 11:31

The God and Father of our Lord Jesus Christ, who is blessed for ever, knows that I do not lie.

2 Corinthians 12:7

And, lest I should be too much exalted by the excellence of the revelations, there was given to me a thorn in the flesh, a messenger of Satan to buffet me, that I might not be too much exalted.

2 Corinthians 12:11

I have become of no understanding; you have compelled me. For I ought to have been commended by you: I am in no respect inferior to the very greatest of the apostles, although I am nothing.

Treasury of Scripture Knowledge

Summary

For though I would desire to glory, I shall not be a fool; for I will say the truth: but now I forbear, lest any man should think of me above that which he seeth me to be, or that he heareth of me.

General references

Bible References

I would

2 Corinthians 10:8
For though I should boast even, somewhat more abundantly of our authority, which the Lord has given us for edification, and not for your destruction, I would not be ashamed:
2 Corinthians 11:16
I say again, let no one think that I am without understanding; but if so, even as one without understanding bear with me, that I also may boast a little.
1 Corinthians 3:5
Who, then, is Paul? and who is Apollos? Ministers by whom you have believed, even as the Lord gave to each one.

Above that

2 Corinthians 12:7
And, lest I should be too much exalted by the excellence of the revelations, there was given to me a thorn in the flesh, a messenger of Satan to buffet me, that I might not be too much exalted.
2 Corinthians 10:9
that I may not seem as if I would terrify you by letters.

General references

1 Corinthians 2:3
And I was with you in weakness, and in fear, and in much trembling: