Mark 9:14-17

14When they came to the other disciples, they saw a large crowd around them and the teachers of the law arguing with them.

15As soon as all the people saw Jesus, they were overwhelmed with wonder and ran to greet him.

16“What are you arguing with them about?” he asked.

17A man in the crowd answered, “Teacher, I brought you my son, who is possessed by a spirit that has robbed him of speech.