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.

 The offer of Christ is life in time and life in eternity. That is the greatness and glory of which we cheat ourselves when we refuse his invitation. 