6 Bible Verses about Demons Causing Illness

And one of the multitude answered Him, "Teacher, I have brought to Thee my son, who has a dumb spirit; and wheresoever it seizes upon him, it tears him, and he foams, and gnashes his teeth, and pines away. And I spake to Thy disciples, that they should cast it out; and they were not able." And He, answering, saith to them, "O faithless generation! how long shall I be with you! how long shall I bear with you? Bring him to Me."read more.
And they brought him to Him. And, seeing Him, the spirit straightway convulsed him; and, falling upon the ground, he was wallowing, foaming. And He asked his father, "How long a time is it since this has befallen him?" And he said, "From a child. And oft-times it cast him both into the fire and into the water, to destroy him; but, if Thou canst do anything, having compassion on us, help us!" Jesus said to him, "'If thou canst!' All things are possible to him that believes." Straight-way the father of the child, crying out, said, "I believe; help Thou my unbelief!" And Jesus, seeing that a multitude was running together, rebuked the unclean spirit, saying to it, "Deaf and dumb spirit, I command you, come out of him, and enter no more into him." And, having cried out, and convulsed him much, it came out; and he became as one dead; so that many said, "He died!" But Jesus, taking hold of his hand, raised him, and he stood up.

And, when they came to the multitude, there approached Him a man, kneeling to Him, and saying, "Lord, have mercy on my son, because he is lunatic, and suffers grievously; for often he falls into the fire, and often into the water. And I brought him to Thy disciples, and they could not heal him."read more.
And Jesus, answering, said, "O faithless and perverted generation! How long shall I be with you? Bring him here to Me." And Jesus rebuked it, and the demon went out of him, and the boy was healed from that hour.

And it came to pass on the next day, when they came down from the mountain, that a great multitude met Him. And, behold, a man from the multitude cried, saying, "Teacher, I pray Thee to look upon my son, because he is my only begotten. And, behold, a spirit takes him, and suddenly he cries out, and it convulses him with foaming, and with difficulty it departs from him, bruising him;read more.
and I besought Thy disciples to cast it out, but they were not able." And Jesus answering, said, "O faithless and perverse generation, how long shall I be with you, and bear with you? Bring your son here." And, while he was yet coming, the demon thrust him down, and greatly convulsed him. But Jesus rebuked the unclean spirit, and healed the boy, and gave him back to his father.

And, as they were going forth, behold, they have brought to Him a dumb man, a demoniac; and, the demon having been cast oat, the dumb spake. And the multitudes wondered, saying, "Never was it so seen in Israel!"

And He was casting out a dumb demon. And it came to pass that, when the demon went out, the dumb spake, and the multitudes marvelled.

And, behold, a woman who had a spirit of infirmity eighteen years, and was bowed together, and wholly unable to raise herself up.