After Paul's initial visit to Corinth false teachers crept into the young congregation. They did their best to discredit the Apostle Paul with all manner of criticisms. In 2 Corinthians Paul answered their complaints and contrasts himself with false prophets.

True ministers focus on the eternal. False prophets focus on the external.
True ministers seek to give riches. False prophets seek to gain riches.
True ministers are wise to Satan. False prophets are deceived by Satan.
True ministers (if pushed) boast of their sufferings. False prophets boast about themselves.