Today's Gospel was about the time the apostles were rowing on the lake and a storm sprang up. Jesus came to them walking on the water. Peter, impetuous as ever, asked Jesus to allow him to walk on the water too. Jesus told him to come, so Peter got out of the boat and began walking. Then he realized what he was doing, saw how bad the storm was, lost faith and began to sank. But Jesus was there, and he reached out and lifted Peter back up.
Sometimes I do the same thing. I take a leap of faith in some way, then realize what I'm doing and start to falter. But Jesus is always there. By myself I can't do it, but with Jesus I can.