Ambrosiaster : The servants of righteousness are the apostles, whose associates these people falsely pretended to be, so as to deceive their hearers. — COMMENTARY ON PAUL'S EPISTLES Theodoret of Cyrus : It is the devil's custom to imitate the things of God. He sets up false prophets to oppose the true ones and assumes the form of an angel in order to deceive men. — COMMENTARY ON THE SECOND EPISTLE TO THE CORINTHIANS 344