Mark 9:17-24

One of the crowd replied to Him, “Teacher, I brought You my son, possessed with a spirit which makes him unable to speak; and whenever it seizes him [intending to do harm], it throws him down, and he foams [at the mouth], and grinds his teeth and becomes stiff. I told Your disciples to drive it out, and they could not do it.” He replied, “O unbelieving (faithless) generation, how long shall I be with you? How long shall I put up with you? Bring him to Me!” They brought the boy to Him. When the [demonic] spirit saw Him, immediately it threw the boy into a convulsion, and falling to the ground he began rolling around and foaming at the mouth. Jesus asked his father, “How long has this been happening to him?” And he answered, “Since childhood. 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.”