Matthew 17:15 ASV

¹³  Then understood the disciples that he spake unto them of John the Baptist.

¹⁴  And when they were come to the multitude, there came to him a man, kneeling to him, saying,

¹⁵  Lord, have mercy on my son: for he is epileptic, and suffereth grievously; for oft-times he falleth into the fire, and off-times into the water.

¹⁶  And I brought him to thy disciples, and they could not cure him.

¹⁷  And Jesus answered and said, O faithless and perverse generation, how long shall I be with you? how long shall I bear with you? bring him hither to me.