2 Corinthians 10:12

For we are not bold to number or compare ourselves with certain of them that commend themselves: but they themselves, measuring themselves by themselves, and comparing themselves with themselves, are without understanding. [Let all who thus accuse me of cowardice know assuredly that when I come my deeds will comport with the threatenings and warnings in my letters. I have in no way exaggerated my authority or power in my writing to you, for in this art of exaggerated self-praise or self-commendation I am not the equal of the false leaders in Corinth. In this art I am not so proficient that I can presume to measure myself with these Corinthian experts, for they, never looking outside their own narrow circle, but comparing themselves with each other, have swelled with an inflated sense of self-importance which would have long since been punctured so that it would have collapsed if they had brought themselves into comparison with the real apostles. Real worth can never speak so highly of itself as can conceited and unreasoning vanity. Those who compare themselves with Christ lose that self-exaltation which belongs to those who compare themselves only with men, hence they are too handicapped to enter into competition with any such in the matter of boasting.]