Then they went into Capernaum, a town in Galilee, and Jesus immediately went into the synagogue on the Sabbath and began to teach. The congregation was astonished at what he was teaching them because Jesus was teaching them as an authority, and not merely quoting other people like the scribes did.
There was a man in the synagogue who had an unclean (demonic) spirit. He yelled out “Leave us alone! Why are you bothering us, Jesus the Nazarene? Are you here to destroy us? I know who you are – you are the holy one of God!”
Jesus commanded the demon saying “Be silent, and leave this man!” Immediately the unclean spirit made the man convulse, then it shouted with a loud voice and left him unharmed.
Everyone there was amazed and they began to wonder among themselves “What is this message? He is able to command unclean spirits with authority and they leave!” News about Jesus then began to spread throughout all of Galilee.
MK 1:21-28, LK 4:31-37
Jesus left the area when he became aware that they were plotting against him.
He left, traveling with his disciples to the sea. Immense crowds followed him from Galilee, Judea, Jerusalem, Idumea, beyond the Jordan, and around Tyre and Sidon. The huge crowds sought him out because they had heard the news about everything he was doing.
MK 3:7-8, LK 6:17, MT 12:15b.
They came to listen to his teachings and be healed. Everyone who was afflicted by an unclean spirit was healed.
The crowds were thronging to get near him to touch him because he had already healed many other people before, and healing power was coming out of him that day.
MK 3:10, LK 6:19
There were so many people trying to get to him that Jesus told his disciples to prepare a small boat for him so that he would not be crushed by the crowds.
The unclean spirits made the people they had possessed fall down and cry out “You are the Son of God!” when they saw him.
He strongly warned them to not reveal who he was.
MT 12:16, MK 3:12
In doing this he fulfilled the prophecy of Isaiah, who said –
“Behold, this is my chosen servant, the one I love and my soul delights in. I will anoint him with my Spirit, and he will tell the world about justice. He will not fight or yell, and he will not speak in street corners. He will be kind to the weak and give hope to the hopeless, until he has successfully brought justice to the world. His name will bring hope to everyone.”