1 Timothy 6:4

He is proud,.... Or swelled and puffed up with a vain conceit of himself and his own notions, and treats with an haughty air the faithful ministers of the word. The doctrines of grace are of an humbling nature, especially when they are spiritually and experimentally understood and received; but notional knowledge, knowledge of natural things, and the doctrines of men, such as are of their own invention, fill the mind with pride and vanity:knowing nothing; as he ought to know; not anything that is solid and substantial; nothing of the Gospel of Jesus Christ: he may have knowledge of natural and civil things, but not of spiritual ones; he may have collected a medley of knowledge together, but what will be of no real use either to himself or others:but doting about questions and strifes of words: or he is "sick or diseased"; his mind is distempered; he is like one in a fever, that is delirious; his head is light and wild; his fancy is roving, and he talks of things he knows not what; his head runs upon "questions"; foolish and unlearned ones, about the law and works, and the necessity of them to justification and salvation; concerning genealogies, and other fruitless and unprofitable subjects:and strifes of words; mere logomachies; contending and quarrelling more about words than things, which tend to no profit, but to the subverting and confounding of hearers.