14 And when they came to the crowd, a man came up to him and kneeling before him said,
15 "Lord, have mercy on my son, for he is an epileptic and he suffers terribly; for often he falls into the fire, and often into the water.
16 And I brought him to your disciples, and they could not heal him." 17 And Jesus answered, "O faithless and perverse generation, how long am I to be with you? How long am I to bear with you? Bring him here to me." 18 And Jesus rebuked him, and the demon came out of him, and the boy was cured instantly. 19 Then the disciples came to Jesus privately and said, "Why could we not cast it out?" 20 He said to them, "Because of your little faith. For truly, I say to you, if you have faith as a grain of mustard seed, you will say to this mountain, `Move from here to there,' and it will move; and nothing will be impossible to you."
14 And when they came to the disciples, they saw a great crowd about them, and scribes arguing with them. 15 And immediately all the crowd, when they saw him, were greatly amazed, and ran up to him and greeted him.
16 And he asked them, "What are you discussing with them?" 17 And one of the crowd answered him, "Teacher, I brought my son to you, for he has a dumb spirit; 18 and wherever it seizes him, it dashes him down; and he foams and grinds his teeth and becomes rigid; and I asked your disciples to cast it out, and they were not able." 19 And he answered them, "O faithless generation, how long am I to be with you? How long am I to bear with you? Bring him to me." 20 And they brought the boy to him; and when the spirit saw him, immediately it convulsed the boy, and he fell on the ground and rolled about, foaming at the mouth. 21 And Jesus asked his father, "How long has he had this?" And he said, "From childhood. 22 And it has often cast him into the fire and into the water, to destroy him; but if you can do anything, have pity on us and help us." 23 And Jesus said to him, "If you can! All things are possible to him who believes." 24 Immediately the father of the child cried out and said, "I believe; help my unbelief!" 25 And when Jesus saw that a crowd came running together, he rebuked the unclean spirit, saying to it, "You dumb and deaf spirit, I command you, come out of him, and never enter him again."
26 And after crying out and convulsing him terribly, it came out, and the boy was like a corpse; so that most of them said, "He is dead." 27 But Jesus took him by the hand and lifted him up, and he arose. 28 And when he had entered the house, his disciples asked him privately, "Why could we not cast it out?" 29 And he said to them, "This kind cannot be driven out by anything but prayer."
37 On the next day, when they had come down from the mountain, a great crowd met him. 38 And behold, a man from the crowd cried, "Teacher, I beg you to look upon my son, for he is my only child; 39 and behold, a spirit seizes him, and he suddenly cries out; it convulses him till he foams, and shatters him, and will hardly leave him. 40 And I begged your disciples to cast it out, but they could not." 41 Jesus answered, "O faithless and perverse generation, how long am I to be with you and bear with you? Bring your son here." 42 While he was coming, the demon tore him and convulsed him. But Jesus rebuked the unclean spirit, and healed the boy, and gave him back to his father. 43 And all were astonished at the majesty of God.