As Jesus was preaching in a synagogue in Capernaum, a man who was possessed by a demon began shouting at Jesus. Jesus healed the man and news of the miracle spread quickly throughout area of Galilee, which is in the northern part of the Biblical land of Israel.
As described in the Gospel of Mark:
"Be quiet!" said Jesus sternly. "Come out of him!" The impure spirit shook the man violently and came out of him with a shriek.
The people were all so amazed that they asked each other, "What is this? A new teaching - and with authority! He even gives orders to impure spirits and they obey him." News about him spread quickly over the whole region of Galilee.
- Mark 1:21-28, NIV translation.