Matthew 17:14-19
14At the bottom of the mountain, they were met by a crowd of waiting people. As they approached, a man came out of the crowd and fell to his knees begging,d
15"Master, have mercy on my son. He goes out of his mind and suffers terribly, falling into seizures. Frequently he is pitched into the fire, other times into the river.
16I brought him to your disciples, but they could do nothing for him."
17Jesus said, "What a generation! No sense of God! No focus to your lives! How many times do I have to go over these things? How much longer do I have to put up with this? Bring the boy here."e
18He ordered the afflicting demon out--and it was out, gone. From that moment on the boy was well.
19When the disciples had Jesus off to themselves, they asked, "Why couldn''t we throw it out?"