¹⁷ Someone from the crowd answered him, “Teacher, I brought you my son; he has a spirit that makes him unable to speak; ¹⁸ and whenever 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, but they could not do so.” ¹⁹ He answered them, “You faithless generation, how much longer must I be among you? How much longer must I put up with you? Bring him to me.” ²⁰ And they brought the boy^[a] to him. When the spirit saw him, immediately it convulsed the boy,^[b] and he fell on the ground and rolled about, foaming at the mouth. ²¹ Jesus^[c] asked the father, “How long has this been happening to him?” And he said, “From childhood. ²² It has often cast him into the fire and into the water, to destroy him; but if you are able to do anything, have pity on us and help us.” ²³ Jesus said to him, “If you are able!—All things can be done for the one who believes.” ²⁴ Immediately the father of the child cried out,^[d] “I believe; help my unbelief!” ²⁵ When Jesus saw that a crowd came running together, he rebuked the unclean spirit, saying to it, “You spirit that keeps this boy from speaking and hearing, I command you, come out of him, and never enter him again!” ²⁶ 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 was able to stand. ²⁸ When he had entered the house, his disciples asked him privately, “Why could we not cast it out?” ²⁹ He said to them, “This kind can come out only through prayer.”^[e]