In a Peanuts cartoon Linus comes running across the beach to Charlie Brown shouting "I can swim, I can swim!"

"Well, I'm glad to hear that Linus, congratulations!"

"Yes sir," Linus says, "If I'm ever aboard an ocean liner and it sinks four feet from shore, I won't have a thing to worry about!"

Isn't that true for most of us? Peter, you and I can go about 4 feet on the power of our own faith, but thereafter we need to rely on the strong arms and hands of our Sovereign Lord.