Let another man praise thee, and not thine own mouth,.... Men should do those things which are praiseworthy; and should do them openly, that they may be seen and praised for them: for it is honourable to have such a character as Demetrius had, who had a good report of all men; and as the brother had, whose praise in the Gospel was in all the churches.
To be commended by others, by any but a man's self, is to his credit and reputation; but nothing more hurtful to it than self-commendation; see 2Co 10:18; in some cases it is right for a man indeed to commend himself, when the glory of God, the credit of religion, the cause of truth and self-vindication, require it; as the prophet Samuel, the Apostle Paul, and others, have been obliged to do, 1Sa 12:3, &c.