Truth is our foundation. If one tries to base truth on feelings, which are hopelessly falible and ever changing, then instead of a mighty rock, their morals are built upon sand. A house built upon sand cannot withstand the storm. It will not hold. "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." -Matthew 7:24-27