Question: "What is Christian Demonology?"
Answer: Demonology is the study of demons. Christian Demonology is the study of what the Bible teaches about demons. Closely related to Angelology, Christian Demonology teaches us about the demons, what they are and how they attack us. Satan and his demons are fallen angels, true and real personal beings who wage war against God, the holy angels, and humanity. Christian Demonology helps us to be aware of Satan, his minions, and their evil schemes. Some important issues in Christian demonology are:
What does the Bible say about demons? The Bible indicates that the demons are fallen angels – angels who along with Satan rebelled against God. Satan and his demons now look to destroy and deceive all those who follow and worship God.
How, why, and when did Satan fall from heaven? Satan fell from heaven because of the sin of pride, which led to his rebellion against God. The actually time of the fall is not recorded in Scripture and may have occurred outside time as we know it, i.e. before the creation of the world and the creation of time and space.
Why did God allow some of the angels to sin? The angels who fell and became demons had a free will choice to make - God did not force or encourage any of the angels to sin. They sinned of their own free will and therefore are worthy of God's eternal wrath.
Can Christians be demon possessed? We strongly hold to the belief that a Christian cannot be possessed by a demon. We believe there is a sharp difference between being possessed by a demon, and being oppressed / influenced by a demon.
Is there activity of demonic spirits in the world today? Considering the fact that Satan “walks about like a roaring lion, seeking whom he may devour” (1 Peter 5:8) and knowing that he is not omnipresent, it is logical that he would send forth his demons to do his work in this world.
Who / what were the Nephilim? The Nephilim (fallen ones, giants) were the offspring of sexual relationships between the sons of God and daughters of men in Genesis 6:1-4. There is much debate as to the identity of the "sons of God".
Many people believe Satan and his demons are only personifications of evil. Christian Demonology helps us to understand that the nature of our spiritual enemy. It teaches us how to resist and overcome the devil and his temptations. Praise God for the victory over darkness through our Lord Jesus Christ! While the Christian should not be in any way obsessed or fascinated with demonology, a clear understanding of demonology will calm our fears relating to demons, keep us watchful, and remind us to stay close to our Lord and Savior, Jesus Christ, because He has sent the Holy Spirit to live in our hearts and “greater is He that is in us than he that is in the world” (1 John 4:4).
A key Scripture related to Christian Demonology is 2 Corinthians 11:14-15, "And no wonder, for Satan himself masquerades as an angel of light. It is not surprising, then, if his servants masquerade as servants of righteousness. Their end will be what their actions deserve."