They fail to admit that the past is what they stand on. They fail to see that something which they now stand on might be changed. Their foundation is shaky.
Like the man who built his house on the sand!
Mat 7:24-27 (ESVST) 24 "Everyone then who hears these words of mine and does them will be like a wise man who built his house on the rock. 25 And the rain fell, and the floods came, and the winds blew and beat on that house,
but it did not fall, because it had been founded on the rock. 26 And everyone who hears these words of mine and does not do them will be like a foolish man who built his house on the sand. 27 And the rain fell, and the floods came, and the winds blew and beat against that house, and it fell, and great was the fall of it."
If the foundation of the founding fathers teachings of JW's is "old light", that foundation is sand, not "Rock"! I hope JW's will take into consideration that that verse says, "founded on "the" rock", not just "A" rock.