What the Bible says about Influence of Satan
(From Forerunner Commentary)

Revelation 2:5 A spiritual fall is serious if one is unable to get back up or is not motivated to do so (James 3:2; Romans 11:22; Hebrews 2:3; 6:4-6; 10:26-27). Sin will soon begin to corrupt the mind and can quickly become a way of life (Luke 11:26 Acts 7:51-53; 8:21; II Peter 2:22; Proverbs 21:16; Ephesians 4:19). Salvation is at stake (Hebrews 2:3)! At the very moment a sinner needs closeness with God, he instead can find himself opening up to the influence of Satan the Devil, which only compounds the danger (Mark 4:15; II Corinthians 11:3; I Peter 5:8). Therefore, Jesus wisely threatens the Ephesian church with the loss of a lampstand—the expulsion from the fellowship of the Body of Christ—a forceful and compelling warning to provoke a heightened sense of urgency to remember and repent while there is still time (Isaiah 55:6; John 12:35-36; Hebrews 3:13; Ephesians 5:16). Martin G. Collins First Love (Part Two) Related Topics: Ephesus Castigated for Leaving First Love | Falling Short | Overcoming, Urgency in | Satan's Influence | Sense of Urgency | Struggle against Satan's Influence | Urgency, Sense of