This is again the second sign that Jesus did, having come out of Judea into Galilee.

 4:31-34 Meanwhile his disciples asked him: "Rabbi! Eat something! have food," he said to them, "of which you do not know." "Surely," his disciples kept saying to each other, "someone can't have given him something to eat?" "My food," said Jesus to them, "is to do the will of him who sent me and to complete his work." 