Skeptics using the archaic KJV English may object that the Jordan, being the east boundary of Judea, means that there can be no "coasts" of Judea beyond Jordan. Modern translations capture the sense for our ears thus: "When Jesus had finished saying these things, he left Galilee and went into the region of Judea to the other side of the Jordan." The Greek word used here means a border or a coast -- the KJV translators may have been wrong, but not Matthew.