4 Bible Verses about Overestimation

For I say, through the grace that was given me, to every man who is among you, not to think of himself more highly than he ought to think; but to think reasonably, as God has apportioned to each person a 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. Don't set your mind on high things, but associate with the humble. Don't be wise in your own conceits.

For if I would desire to boast, I will not be foolish; for I will speak the truth. But I refrain, so that no man may think more of me than that which he sees in me, or hears from me.