The thing is, Jesus didn't preach in Jerusalem. He specifically went there to die. He preached in Greek Capernaum because he was AWAY from the Romans and Pharisees for the most part. He was from Galilee, GREEK, from the little Hebrew outpost of Nazareth. Maybe 100 villagers? Paul? Greek. Jesus was around Greeks most of his life. Some have postulated that the "Kingdom of God on earth" referred to the Greeks and Jews worshiping together...forbidden under Jewish purity laws.
I worry people becomes so obsessed with the bible they miss the reality of who Jesus really was.