They said to the woman, "Now we believe, not because of your speaking; for we have heard for ourselves, and know that this is indeed the Christ, the Savior of the world."

 John did not invent the title. In the Old Testament God had often been called the God of salvation, the Saviour, the saving God. Many of the Greek gods had acquired this title. At the time John was writing the Roman Emperor was invested with the title Saviour of the World. It is as if John said: "All that you have dreamed of has at last in Jesus come true." 