house built on sand
Matthew 7:24-27: "Therefore whosoever heareth these sayings of
mine, and doeth them, I will liken him unto a wise man, which
built his house upon a rock: And the rain descended, and the
floods came, and the winds blew, and beat upon that house; and it
fell not: for it was founded upon a rock. And every one that
heareth these sayings of mine, and doeth them not, shall be
likened unto a foolish man, which built his house upon the sand:
And the rain descended, and the floods came, and the winds blew,
and beat upon that house; and it fell: and great was the fall of
it."
