6 Bible Verses about Demons Causing Illness

A man in the crowd answered him, "Teacher, I brought my son to you. He has a spirit that won't let him talk. Whenever it brings on a seizure, it throws him to the ground. Then he foams at the mouth, grinds his teeth, and becomes stiff. So I asked your disciples to drive the spirit out, but they didn't have the power." Jesus told them, "You unbelieving generation! How long must I be with you? How long must I put up with you? Bring him to me!"read more.
So they brought the boy to him. When the spirit saw Jesus, it immediately threw the boy into convulsions. He fell on the ground and kept rolling around and foaming at the mouth. Then Jesus asked his father, "How long has this been happening to him?" He said, "Since he was a child. The spirit has often thrown him into fire and into water to destroy him. But if you are able to do anything, have pity on us and help us!" Jesus told him, ""If you are able?' Everything is possible for the person who believes!" With tears flowing, the child's father at once cried out, "I do believe! Help my unbelief!" When Jesus saw that a crowd was running to the scene, he rebuked the unclean spirit, saying to it, "You spirit that won't let him talk or hear I command you to come out of him and never enter him again!" The spirit screamed, shook the child violently, and came out. The boy was like a corpse, and many said that he was dead. But Jesus took his hand and helped him up, and he stood up.

As they approached the crowd, a man came up to Jesus, knelt down in front of him, and said, "Sir, have mercy on my son, because he is an epileptic and suffers terribly. Often he falls into fire and often into water. I brought him to your disciples, but they couldn't heal him."read more.
Jesus replied, "You unbelieving and perverted generation! How long must I be with you? How long must I put up with you? Bring him here to me!" Then Jesus rebuked the demon and it came out of him, and the boy was healed that very hour.

The next day, when they had come down from the mountain, a large crowd met Jesus. Suddenly, a man in the crowd shouted, "Teacher, I beg you to look at my son, because he is my only child. Without warning a spirit takes control of him, and he suddenly screams, goes into convulsions, and foams at the mouth. The spirit mauls him and refuses to leave him. read more.
I begged your disciples to drive it out, but they couldn't." Jesus answered, "You unbelieving and perverted generation! How much longer must I be with you and put up with you? Bring your son here!" Even while the boy was coming, the demon knocked him to the ground and threw him into convulsions. But Jesus rebuked the unclean spirit, healed the boy, and gave him back to his father.

As the men were going out, a man who couldn't talk because he was demon-possessed was brought to him. As soon as the demon had been driven out, the man began to speak. The crowds were amazed and said, "Nothing like this has ever been seen in Israel!"

Jesus was driving a demon out of a man who was unable to talk. When the demon had gone out, the man began to speak, and the crowds were amazed.

A woman was there who had a spirit that had disabled her for eighteen years. She was hunched over and completely unable to stand up straight.