16 When evening came, his disciples went down to the lake,17 where they got into a boat and set off across the lake for Capernaum. By now it was dark, and Jesus had not yet joined them.18 A strong wind was blowing and the waters grew rough.19 When they had rowed about three or four miles, they saw Jesus approaching the boat, walking on the water; and they were frightened.20 But he said to them, "It is I; don't be afraid."21 Then they were willing to take him into the boat, and immediately the boat reached the shore where they were heading.
 There is more detail in another of the gospels (too lazy this morning to look up which one) about this story.  Our popular saying about someone "walking on water" implies super-human talent or super-human arrogance ("He thinks he walks on water.")  This is another bit of scriptural evidence that Jesus was not only a man and could not have been just a wise teacher.  He was God come to earth to save us.