1. The kingdom of God has come (14-20)
A demon made a man mute. Demons work in strange ways. Jesus drove out the demon and restored the man's speech. It's was by God's power and love. His critics said it was by Satan's power. But why would Satan be against himself, commanding a demon out? Satan would encourage more demons to come in. Jesus worked by the finger of God, that is, by God's power and word (Ex 8:19; 31:18). Jesus came to destroy the devil's work (1Jn 3:8).
2. Hear and obey God's word (21-28)
Satan is strong, but Jesus is stronger, since Jesus rescued Satan's prisoner (the mute man). Whoever doesn't fight Satan or calls Jesus evil is against Jesus (23). Cleaning up one's life isn't enough to keep the devil away (25-26). We must be filled with Jesus and His Spirit. A woman thought Jesus' mother was so blessed to raise him so well. Jesus replied that blessed people hear and obey the word of God.