and He must not be a new convert, so that he will not [behave stupidly and] become conceited [by appointment to this high office] and fall into the [same] condemnation incurred by the devil [for his arrogance and pride].

he is conceited and woefully ignorant [understanding nothing]. He has a morbid interest in controversial questions and disputes about words, which produces envy, quarrels, verbal abuse, evil suspicions,