I was holding my five year old when she pointed at a decoration in our family room. "Dad, what does F-A-I-T-H spell?" (She asks what everything spells these days--part of the learning process.)
I said, "faith, Olivia. That spells faith. What is faith?"
Her answer: "being nice to people and..." Okay but not quite. Time to define so a five year old can remember.
I defined it for her this way: "Faith is doing what God says because you believe Him." Simple enough for a 5 year old, convicting enough for a 35 year old. I think I'll stick with that simple definition.