The Emperor Marcus Aurelius died in 181, and the Church was little troubled by persecution for the following twenty years. About this time a false teacher named Montanus made much noise in the world. He was born in Phrygia, and seems to have been crazed in his mind. He used to fall into fits, and while in them, he uttered ravings which were taken for prophecies, or messages from heaven: and some /women who followed him also pretended to be prophetesses. These people taught a very strict way of living, and thus many persons who wished to lead holy lives were deceived into running after them. One of these was Tertullian, of Carthage, in Africa, a very clever and learned man, who had been converted from heathenism, and had written some books in defence of the Gospel, but he was of a proud and impatient temper, and did not rightly consider how our Lord Himself had said that there would always be a mixture of evil with the good in His Church on earth (St. Matt. xiii. 38, 48). And hence, when Montanus pretended to set up a new church, in which there should be none but good and holy people, Tertullian fell into the snare, and left the true Church to join the Montanists (as the followers of Montanus were called). From that time he wrote very bitterly against the Church; but he still continued to defend the Gospel in his books against Jews and heathens, and all kinds of false teachers, except Montanus. And when he was dead, his good deeds were remembered more than his fall, so that, with all his faults, his name has always been held in respect.

Monatism from SKETCHES OF CHURCH HISTORY by REV. J. C ROBERTSON, M.A.