According to Jesus, anyone who calls another a fool is in danger of going to
hell:
But I say unto you, That whosoever is angry with his brother without a cause shall be in danger of the judgment: and whosoever shall say to his brother, Raca, shall be in danger of the council: but whosoever shall say, Thou fool, shall be in danger of hell fire. (Matthew 5:22)
Dispite this, Jesus calls people fools, putting himself in danger of the very hellfire he warned us about in
Mathew 5:
Ye fools and blind: for whether is greater, the gold, or the temple that sanctifieth the gold? (Matthew 23:17)
Furthermore, God himself calls people fools:
But God said unto him, Thou fool, this night thy soul shall be required of thee: then whose shall those things be, which thou hast provided? (Luke 12:20) (more...)