After these things, Jesus went away to the other side of the sea of Galilee, which is also called the Sea of Tiberias.
In the feeding of the five thousand, we have a miracle ranking with the resurrection itself as the only wonders recorded by all four Gospels.  From the synoptics, it is clear that John passed over practically a full year of the great Galilean ministry which lay between the second and third Passovers.  The synoptics record this sign as the culmination of a series of wonders, but John seems to have presented it for the sake of the discussions that flowed out of it; and it also fitted his design of stressing Jesus' deity.