“… Simon the Cananite, and Judas Iscariot, who also betrayed Him. These twelve Jesus sent out and commanded them, saying: ‘Do not go into the way of the Gentiles, and do not enter a city of the Samaritans. But go rather to the lost sheep of the house of Israel. And as you go, preach, saying, ‘The kingdom of heaven is at hand.’” – Matt. 10:4-7
Beware of false teachers: Even Judas Iscariot, the son of perdition (John 17:12) preached.