Luke 9:40

37 And it came to pass, on the next day, when they were come down from the mountain, a great multitude met him.

38 And behold, a man from the multitude cried, saying, Teacher, I beseech thee to look upon my son; for he is mine only child:

39 and behold, a spirit taketh him, and he suddenly crieth out; and it teareth him that he foameth, and it hardly departeth from him, bruising him sorely.

40 And I besought thy disciples to cast it out; and they could not.

41 And Jesus answered and said, O faithless and perverse generation, how long shall I be with you, and bear with you? bring hither thy son.

42 And as he was yet a coming, the demon dashed him down, and tare [him] grievously. But Jesus rebuked the unclean spirit, and healed the boy, and gave him back to his father.

43 And they were all astonished at the majesty of God. But while all were marvelling at all the things which he did, he said unto his disciples,