for eighteen years” (Luke 13:11, 16), we have no warrant for directly attributing all physical illness to satanic or demonic activity. There are those who have claimed that demons are responsible for every affliction, disease, or aberration, but the American theologian Augustus Strong was on safer ground when we wrote, “We are to attribute disease and natural calamity to their agency only when this is a matter of special revelation.”
What of demon possession?
There are several New Testament instances of this (for example, Mark 1:23). Liberals have suggested that the Bible was merely reflecting contemporary ideas, or that Jesus was indulgently accommodating people’s beliefs, while others have assumed that demon possession was limited to biblical times, and especially to the time when Jesus was on earth, directly opposing the work of Satan. But all these ideas fly in the face of facts. There is no evidence that the work of Satan or his agents has lessened in intensity as the centuries have passed; in fact, a case could be made for saying the opposite.
In cases of demon possession, the personality of the person concerned is eclipsed by the demon, so that demonic personality is what is revealed. Can a Christian be demon-possessed? There is limited anecdotal evidence that in certain circumstances Christians have been subject to intense demonic attack, but we need to give full weight to the Bible’s assurance that as far as the believer is concerned “the evil one does not touch him” (1 John 5:18). The word translated “touch” here means “grasp, so as to detain,” and it is matched by Jesus’ assurance that as far as believers are concerned “no one is able to snatch them out of the Father’s hand” (John 10:29). When our doctrine is determined by Scripture rather than by mere emotions, experiences, or clinical case studies, it is clear that a true believer cannot be possessed by the forces of evil.
We must also beware of what Martyn Lloyd-Jones called “capitulation to phenomena,” especially in the area of exorcism, when it is clear from Matthew 7:22–23 that even the casting out of evil spirits does not guarantee the person doing so a place in heaven! The need, as in all our living, preaching, and counselling, is to focus on Christ.
Even this whirlwind overview of the subject is inevitably sobering, but when viewed through the lens of Scripture, we can be assured of two things. Firstly, neither the Devil nor his demons are independent, omnipotent, omniscient, or omnipresent. Their power and influence, in time and extent, is limited by the permissive will of God, who “works all things according to the counsel of his will” (Eph. 1:11). Secondly, Jesus made it clear that their ultimate fate is to be cast into “the eternal fire prepared for the devil and his angels” (Matt. 25:41).