When David went to face Goliath in the ultimate duel, what did David take with him?

Many years ago I was at a conference where I found myself connecting with some leaders from a fast growing church.

I'm trying to get my head around some of the ways that Jesus thinks. 

I've been thinking about the time Jesus calmed the storm in Mark 4:35-41.

I was significantly struck by the child-like words of Peter in Luke 4:5 "Master, we've worked hard all night and haven't caught...