Verse 20 “But if I with the finger of God cast out devils, no doubt the kingdom of God is come upon you.”
When Jesus said, “No doubt the kingdom is come upon you,” He did not mean that the Kingdom of God had come to earth and that the disciples were now in the Kingdom Age. We are not in the Kingdom Age today, and we won’t be until Jesus returns personally to the earth to establish that Kingdom. Jesus simply meant that the King, the Lord Jesus, was among them and performing miraculous works. Jesus proved by His works that He was the King of the Jews and the Lord of Creation. Our works too should prove that the Lord is in us.