Jesus said, If you continue in my word, then are you my disciples indeed, John 8:31.

These words apply to us, that is, if we continue in and act on His word.

All authority and power over all devils and diseases was given to every disciple, Matthew 10:1, And when he had called unto him his twelve disciples, he gave them power against unclean spirits, to cast them out, and to heal all manner of sickness and all manner of disease.

Satan's work is to kill. Jesus' work is to give us life.
Satan is bad, bad things come from him.
God is good, good things come from Him.
Sicknesses and diseases are from satan.
Health and wholeness is from God.

The Bible teaches us that the Spirit's work is to quicken [make alive] our mortal bodies in this life, Romans 8:11,  But if the Spirit of him that raised up Jesus from the dead dwell in you, he that raised up Christ from the dead shall also quicken your mortal bodies by his Spirit that dwelleth in you.

We are promised the life of Jesus in our mortal flesh, 2 Corinthians 4:11, For we which live are always delivered unto death for Jesus' sake, that the life also of Jesus might be made manifest in our mortal flesh.

Satan is a killer; his diseases are destroyers of life. His sicknesses are thieves of happiness, health, money, time and effort; but Jesus came to give us abundant life in our bodies and spirits.

Jesus said, The thief [satan] comes not but to steal and to kill and to destroy; I am come that they might have life and that they might have it more abundantly, John 10:10.

Jesus came to save us, that means to deliver us, preserve us, heal us, to give us life, to make us whole, but never to destroy us.

Jesus said, The Son of man is not come to destroy human lives, but to save them, Luke 9:56.

Sickness, disease and sin destroys so it isn't from God.

Jesus doesn't want the works of the devil to be in our physical bodies.

Know you not that your bodies are the members of Christ? 1 Corinthians 6:15.

Jesus always treated sin, diseases and sicknesses the same. They were all hateful in His sight.

He rebuked them all because He was manifested to destroy them.

We are told that The Son of God was manifested, that He might destroy the works of the devil, 1 John 3:8, sickness is part of satan's works.

It is written: Jesus of Nazareth went about doing good and healing all that were oppressed of the devil, Acts 10:38, sickness is oppression of satan.

A demon was the cause of a boy being deaf and dumb and also the cause of his convulsions.

When the demon was cast out, the boy was healed, Mark 9:17-27.

A devil which possessed a man was the cause of his being both blind and dumb. 

When the devil was cast out, the man could see and talk, Matthew 12:22.

Jesus declared that the infirm woman was bound by satan and ought to be loosed.

He cast out the spirit of infirmity and she was healed, Luke 13:16.

Sickness is revealed as coming directly from satan, Job 42:10,12.

Jesus fulfilled Isaiah's words: He healed all that were sick, Matthew 8:16-17

The word bore implies substitution [suffering for], not sympathy [suffering with].

If Jesus has borne our sicknesses, why should we bear them?