Mark 1:21-27

They went into Capernaum, and immediately on the Sabbath Jesus went into the synagogue and began to teach. [Luke 4:31-37] They were completely amazed at His teaching; because He was teaching them as one having [God-given] authority, and not as the scribes. Just then there was a man in their synagogue with an unclean spirit; and he cried out [terribly from the depths of his throat], saying, “What business do You have with us, Jesus of Nazareth? Have You come to destroy us? I know who You are—the Holy One of God!” Jesus rebuked him, saying, “Be quiet (muzzled, silenced), and come out of him!” The unclean spirit threw the man into convulsions, and screeching with a loud voice, came out of him. They were all so amazed that they debated and questioned each other, saying, “What is this? A new teaching with authority! He commands even the unclean spirits (demons), and they obey Him.”