Reference

Matthew 17:15

Lord, have mercy on my son: for he is lunatick, and sore vexed: for ofttimes he falleth into the fire, and oft into the water.
13

Then the disciples understood that he spake unto them of John the Baptist.

14

And when they were come to the multitude, there came to him a certain man, kneeling down to him, and saying,

15

Lord, have mercy on my son: for he is lunatick, and sore vexed: for ofttimes he falleth into the fire, and oft into the water.

16

And I brought him to thy disciples, and they could not cure him.

17

Then Jesus answered and said, O faithless and perverse generation, how long shall I be with you? how long shall I suffer you? bring him hither to me.