When therefore they had rowed about twenty-five or thirty stadia,{25 to 30 stadia is about 5 to 6 kilometers or about 3 to 4 miles} they saw Jesus walking on the sea, and drawing near to the boat; and they were afraid.

 One of the loveliest things in the Fourth Gospel is that John, the old fisherman turned evangelist, found all the wealth of Christ in the memory of a fisherman's story. 