The Bible's Book of Matthew records how Jesus Christ performed a miracle to heal a man who couldn't speak because he was possessed by a demon who had afflicted both the man's spiritual and physical health. Here's story:
Matthew 9:32 describes the miracle in a matter-of-fact way: "While they were going out, a man who was demon-possessed and could not talk was brought to Jesus. And when the demon was driven out, the man who had been mute spoke."
Jesus had just finished performing a different kind of miracle -- healing two blind men -- and the text about this miracle starts by mentioning that they were going out just before the demon-possessed man who couldn't speak was brought to Jesus. This is the first miracle of restoring someone's speech that the Bible records Jesus performing. Later, Jesus would miraculously heal a deaf and mute man, restoring both his ability to speak and his ability to hear.
The text shows a connection between the man's spiritual and physical health. As soon as Jesus restored the man spiritually by casting the demon out, the man's physical ability to talk was restored, as well. Although Jesus physically healed many people without casting demons out of them, in this case, he did both to make the man well.
The story continues in Matthew 9:33-34: "The crowd was amazed and said, 'Nothing like this has ever been seen in Israel.'
But the Pharisees said, 'It is by the prince of demons that he drives out demons.'"
The people who witnessed this miracle had two very different reactions. Some believed and responded with a sense of awe, but the local religious leaders were suspicious and responded with fear, telling people that they thought Jesus' miraculous power to make demons obey him must come from Satan, whom the Bible refers to here as "the prince of demons."