John 18:18 “It was cold, and the servants and officials stood around a fire they had made to keep warm.  Peter also was standing with them warming himself.” You are who you hang out with.  Peter was hanging out with enemies of Jesus for seeming logical reasons—it was cold and he and the others wanted warmth.  Noone in the group loved Jesus and Peter knew it.  Peter put himself into a very dangerous place in his spiritual life and he regretfully fell.  The same happens to you and me when we place ourselves surrounded with complacent or enemies of our Savior.  Surround yourselves with those who love their and your Savior.  Our eternal lives are at stake.