4 Bible Verses about Overestimation

For I say, through the grace given unto me, to every man that is among you, not to think of himself more highly than he ought to think; but to think soberly, according as God has dealt to every man the measure of faith.

For if a man thinks himself to be something, when he is nothing, he deceives himself.

Be of the same mind one toward another. Mind not high things, but condescend to men of low estate. Be not wise in your own conceits.

For though I would desire to boast, 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 sees me to be, or that he hears of me.