RKJNT(i)
17 And one of the multitude answered and said, Teacher, I have brought to you my son, who has a dumb spirit;
18 And whenever it seizes him, it tears him: and he foams, and gnashes his teeth, and becomes rigid: and I asked your disciples to cast it out; and they could not.
19 He answered him, and said, O faithless generation, how long shall I be with you? how long shall I endure you? bring him to me.
20 And they brought him to him: and when he saw him, immediately the spirit tore him; and he fell on the ground, and rolled around foaming at the mouth.
21 And he asked his father, How long has this been happening to him? And he said, Since he was a child.
22 And often it has cast him into the fire, and into the waters, to destroy him: but if you can do anything, have compassion on us, and help us.