About Peter walking on the water with Jesus in Matthew 14:
“The point the Lord was at pains to make at this remarkable moment was that to the extent that his disciples concentrate on him, to the extent that he becomes a fixation to us, to the extent that we remember what he has said and act on the truth of it; to the extent that we know Jesus to be with us; to the extent that we remember that he has called us to serve him and promised us the grace necessary to do so; to that extent we will stand on the water and not sink. And if we still fear to sink, it is the greatest conceivable gift that in the midst of the storm we have someone to look at who is not only in complete control of the weather, but who loves and cares for us as only a dying redeemer can.
“There is one more thing worth our always remembering in this episode. Christ lets Peter sink, but he does not let him drown. He teaches him to have a stronger faith; he does not desert him because his faith is weak.”