Today is April Fools' Day in the U.S. It is not usually considered a Christian holiday, but perhaps it should be. In any case, atheists can expect to hear a line from Psalm 14 quoted by their Christian Facebook friends today:
The fool says in his heart, “There is no God.”
Please don't get mad when you see this on your Facebook news feed. This Christian has just revealed how little they know about their own bible. Instead of getting mad, consider using their bible against them. Remind them of Matthew 5:22, which says:
Whosoever shall say, Thou fool, shall be in danger of hell fire.
Is their "clever" little insult really worth burning in the hell in which they believe? For more, see my April Fools Day post from 2009.