The Pharisees are on the prowl again and this time they get personal. Up to this point they had primarily gone after Jesus for operating outside they list of rules they had set up, but now they were attacking the very thought of Jesus being God. A demon possessed man is brought to Jesus and He heals him. The Pharisees get wind of what has happened and say among themselves that Jesus casts out demons with the help of Satan (12:22-24). Knowing their thoughts, Jesus informs them that is were of Satan they why would He work against Satan's power by casting out demons (12:25-30). He was basically saying that what they said didn't make sense. Then, Jesus gets to the heart of the matter - the Pharisees didn't want to believe that Jesus was the Son of David (the Messiah). They knew Jesus was the Messiah, but if they believed in Him their entire system would have to change and they didn't want to do this. At the heart of the conflict was that the Pharisees had seen and witnessed Jesus' power, but chose to reject Him (12:31-37). Jesus responds to their unbelief with condemnation on the real problem - their hearts were wicked (12:38-45) and because their hearts were evil, their actions would be also. Jesus wanted people to know that when a person truly follows Him, things change - actions, attitudes, and speech. Those who belong to God are those who have been saved by grace and their life demonstrates the decision to follow Him (12:46-50). How about me? Since I've been saved by grace am I demonstrating a life pleasing to Him?