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 essence of the Christian life is a new relationship to God, a relationship offered by him and made possible by the revelation which Jesus gave us of him, a relationship which issues in that service, purity and trust which are the reflection of God. This is the work which God wishes us and enables us to perform. 