4 Bible Verses about Overestimation

In virtue of my office, I tell everyone of your number who is self-important, that he is not to think more of himself than he ought to think; he must take a sane view of himself, corresponding to the degree of faith which God has assigned to each.

If anyone imagines he is somebody, he is deceiving himself, for he is nobody;

Keep in harmony with one another; instead of being ambitious, associate with humble folk; never be self-conceited.

(If I did care to boast of other things, I would be no 'fool,' for I would have a true tale to tell; however, I abstain from that ??I want no one to take me for more than he can see in me or make out from me.)