John said to Jesus, “Teacher, we saw someone driving out demons in your name, and we tried to prevent him because he does not follow us.” Jesus replied, “Do not prevent him…” Mark 9:38–39
As Jesus came down from the mountain with Peter, James, John and approached the other disciples, they saw a large crowd around them and scribes arguing with them. Mark 9:14
“What have you to do with me, Jesus, Son of the Most High God? I adjure you by God, do not torment me!” (He had been saying to him, “Unclean spirit, come out of the man!”) He asked him, “What is your name?” He replied, “Legion is my name. ...
When it was evening, after sunset, they brought to him all who were ill or possessed by demons. The whole town was gathered at the door. (Mark 1:32–34)