“These twelve Jesus sent forth, and commanded them, saying, Go not into the way of the Gentiles, and into any city of the Samaritans enter ye not:”
King James Version (KJV)
10:5 These twelve Jesus sent forth - Herein exercising his supreme authority, as God over all. None but God can give men authority to preach his word. Go not - Their commission was thus confined now, because the calling of the Gentiles was deferred till after the more plentiful effusion of the Holy Ghost on the day of pentecost. Enter not - Not to preach; but they might to buy what they wanted, #John 4:9|.
Mt 10:5 Go not into the way of the Gentiles. The Jews called all "Gentiles" who were not Jews. Samaritans. The inhabitants of Samaria, a district between Judea and Galilee; descendants of a remnant of the Ten Tribes, mixed with Gentiles colonized there. They accepted the five books of Moses, but worshipped on Mount Gerizim, instead of at Jerusalem. They and the Jews had been for ages bitter enemies.