Choose Carefully

I just read the story of David and Goliath and in 1 Samuel 17:40 I noticed something I had never noticed before.  Most people are familiar with this story and how David killed Goliath.  The thing that stood out to me is in the verse above.  It says he chose five smooth stones. We skip over this, but it is really significant.  You see, had David not chose smooth stones the one he used might...