It is a contradiction to be a sanctified man, or a true christian, and not humble.
Richard Baxter (Puritan Pastor, 1615 – 1691)
The Word of God (The Holy Bible) says that knowledge puffs up, which leads to pride. And pride leads to arrogance, but do not mistake confidence for pride, there is a difference. For pride is unmerited confidence in yourself, and true confidence is trusting in the One (Jesus) who did it all. Have a blessed day!!!