Mark 9:22-29

The demon has often thrown him both into fire and into water, intending to kill him. But if You can do anything, take pity on us and help us!” Jesus said to him, “[You say to Me,] ‘If You can?’ All things are possible for the one who believes and trusts [in Me]!” Immediately the father of the boy cried out [with a desperate, piercing cry], saying, “I do believe; help [me overcome] my unbelief.” When Jesus saw that a crowd was rapidly gathering [around them], He rebuked the unclean spirit, saying to it, “You deaf and mute spirit, I command you, come out of him and never enter him again!” After screaming out and throwing him into a terrible convulsion, it came out. The boy looked so much like a corpse [so still and pale] that many [of the spectators] said, “He is dead!” But Jesus took him by the hand and raised him; and he stood up. When He had gone indoors, His disciples began asking Him privately, “Why were we unable to drive it out?” He replied to them, “This kind [of unclean spirit] cannot come out by anything but prayer [to the Father].”