Proverbs 27:1-3

International Children’s Bible

27 Don’t brag about what will happen tomorrow.
    You don’t really know what will happen then.

² Don’t praise yourself. Let someone else do it.
    Let the praise come from a stranger and not from your own mouth.

³ Stone is heavy, and sand is hard to carry.
    But the complaining of a foolish person causes more trouble than either.