...only that Marcion says that his god is not feared; maintaining that a good being is not an object of fear, but only a judicial being, in whom reside the grounds of fear— anger, severity, judgments, vengeance, condemnation. But it was from fear, undoubtedly, that the evil spirits were cowed. Therefore they confessed that (Christ) was the Son of a God who was to be feared, because they would have an occasion of not submitting if there were none for fearing. Besides, He showed that He was to be feared, because He drove them out, not by persuasion like a good being, but by command and reproof. Or else did he reprove them, because they were making him an object of fear, when all the while he did not want to be feared? And in what manner did he wish them to go forth, when they could not do so except with fear? So that he fell into the dilemma of having to conduct himself contrary to his nature, whereas he might in his simple goodness have at once treated them with leniency. He fell, too, into another false position — of prevarication, when he permitted himself to be feared by the demons as the Son of the Creator, that he might drive them out, not indeed by his own power, but by the authority of the Creator.
It is so clear that here Tertullian is reporting pure Marcionite thought that there is no need of justification by me.