Demonic activities can be diverse, but they are always directed to promote injustice and destruction of everything that is good and decent.
Demons promote Satan’s program
Demons obey Satan and serve his purposes (Matthew 12:24; John 12:31; Revelation 12:7). These evil spirits do not cease to promote deception and satanic evil.
Satan is not omnipotent, nor is he omnipresent or omniscient. However, he is able to increase his presence, power and knowledge greatly through his network of demons. There is an evident demonic cooperation revealed through various scriptures (Matthew 12:26; 45; Luke 8:30; 1 Timothy 4:1). Demons transmit the philosophy of Satan in several realms:
In the life of individuals – the objective is to lead them to walk according to the philosophy of this world, which is of the prince of the power of the air (Ephesians 2:1, 2). They also promote carnal and sensual desires, pride, materialism and every sort of impurity in the lives of people (John 16:11; 1 John 2:16).
In national and state governments – Satan and his demons work behind governments to influence them in their philosophy, programs and actions (Daniel 10:13; 20). Opposition to the spread of the gospel in all of its forms has to do with the influence of demons.
In the world system – through a spiritual system that expands the influence of Satan through the operation of a myriad of demons. In order to control the world the demons organize themselves in battle under the leadership of their leader (Matthew 12:26; John 12:31; 14:30; 16:11; Ephesians 6:11, 12; 1 John 5:19).
Demons oppose God’s program
Promoting rebellion – (Genesis 3; Titus 2:3, 4; Revelation 9:20, 21; 16:14).
Ridiculing and accusing – they accuse God before men (Genesis 3:1–5; Romans 3:5–8; 6:15; 9:14; 19; James 1:13) and men before God (John 1:9; 11; 2:4, 5; Zechariah 3:1; Revelation 12:10). Since demons are capable of affecting thoughts they are also able to cause self-condemnation through incriminating thoughts, the answer for any accusation is in Jesus, our advocate (1 John 1:9; 2:1, 2).
Promoting idolatry – (Leviticus 17:7; Deuteronomy 32:17; Psalms 96:4, 5; Isaiah 65:11; 1 Corinthians 10:20; 12:2; Revelation 13:4; 15; 9:20).
Rejecting grace – demons are irritated by grace. They are incapable of repentance and salvation. They understand nothing of grace and seek to impede man from receiving it. They distort the grace of God into a lie. (2 Corinthians 4:3, 4) All of their teachings are anti-Christ, denying that Jesus, the God-man, is the genuine substitutionary sacrifice for the sin of man (1 John 2:22; 4:1-4).
Promoting false religions and sects – in their lies, Satan and his demons work both inside and outside true religion. The New Testament also warns us against heresies that distort the truth while affirming a part of it (2 Corinthians 11:13; 15; 22, 23; Galatians 1:6-8; Colossians 2:18-23; 1 Timothy 4:1-4).
Oppressing humanity – demons act in man in the most diverse manners through deception, degradation and destruction. They truly oppress humanity.
Operating through the forces of nature – (John 1:12; 16; 19; 2:7).
Degrading human nature – (Ephesians 2:1-3; Romans 1:18-32)
Straying from the truth – demons blind man to the truth (2 Corinthians 4:3-4; 1 Timothy 4:1-4:1 John 4:1-4)
Destabilizing the body – demons can cause many types of physical problems.
Muteness (Matthew 9:32; 33; 12:22; Mark 9:17-29)
Blindness (Matthew 12:22)
Deformity (Luke 13:11-17)
Epilepsy (Matthew 17:15-18; Mark 920; Luke 9:39)
The Bible does not attribute all infirmities to demons, but distinguishes clearly between natural sickness and demonic sickness (Matthew 4:24; Mark 1:32; 34; Luke 7:21; 9:1).
Disturbing the mind – certain mental disorders have their origin in the operation of demons. Others are merely of a physical nature. Among demonic disorders are insanity (Luke 8:27-29) and attempted suicide (Mark 9:22).
Destruction of life: (Revelation 18:2; 24; 9:14-19) “For their power is in their mouth and in their tails; for their tails are like serpents, having heads; and with them they do harm.” (Revelation 9:19).
Dominating individuals – the agents of Satan control certain men depending on the proportion of their immorality, false religion, involvement with the occult and other deceptions (Acts 8:9-24; 13:8-11; 16:16-19; 2 Thessalonians 2:7-18).
Demons oppose the saints
Against believers in general (Ephesians 6:12) – not every conflict is necessarily provoked by demons. Many come from the corrupted nature of human beings (Romans 7:21-24; James 1:14, 15). However, we recognize that great hosts of evil make war against us. The armor of God prepares us for such battles (Ephesians 6:10).
Against individuals – evil spirits attack our confidence and dedication. The armor of God deflects the type of attack that we can expect (Ephesians 6:14-18). They also tempt man with sin (1 Chronicles 21:1-8; 1 Corinthians 5:1-5; Ephesians 2:2, 3; 1 Thessalonians 4:3-5; 1 John 2:16) and the cause them to become sick (John 2:7-9).
Against the church – the plan of God for the church includes demonstrating His wisdom through the church to the angelic forces (Ephesians 4:3-6). Demons seek to frustrate these plans causing divisions. The church body must be united (Ephesians 4:3-6).
Demons attempt to divide and defeat plans of unity in the church, whether local or universal. They promote doctrinal divisions and speak through false teachers (1 Timothy 4:1-3).
Another manner in which demons attempt to frustrate the plan of God is by counterattacking the ministry of the Gospel. Demons seek to hide the message of the Gospel from sinners. They do this by blinding their minds (2 Corinthians 4:3, 4) and by perverting the gospel (verse. 13-15). They try to prevent the ministry of the gospel from fulfilling its objectives (1 Thessalonians 2:17, 18). The last weapon they attempt to use against the church is satanic persecution (Revelation 2:8-10).
Demons are limited by God
In spite of the intentions of Satan and his demons, God controls their activities, and many times He, uses them for good and for His glory.
To discipline the believer – through this action, God is not practicing evil so that good may come. Instead, he permits morally responsible people to do their own will even though it is evil. Even so, His wisdom limits and controls the effects and thus fulfills His own purposes.
Through His permission, He corrects errors. (1 Timothy 1:19, 20), discernment is created (Job 42:1–6) and dependence is cultivated (2 Corinthians 12:7-9, 10).
To defeat the ungodly