2 Corinthians 10:18

Let a stranger praise you, and not your own mouth; A foreigner, and not your own lips.

But he is a Jew who is one inwardly; and circumcision is that which is of the heart, by the Spirit, not by the letter; and his praise is not from men, but from God.

Therefore do not go on passing judgment before the time, but wait until the Lord comes who will both bring to light the things hidden in the darkness and make manifest the motives of hearts. And then each one’s praise will come to him from God.

Are we beginning to commend ourselves again? Or do we need, as some, letters of commendation to you or from you?

For we do not dare to classify or compare ourselves with some of those who commend themselves, but when they measure themselves by themselves and compare themselves with themselves, they are without understanding.