How we live affects our ability to experience the presence of the Holy Spirit on the one hand and avoid entanglement with evil on the other.
One of the most unsettling books I’ve ever read was M. Scott Peck’s Glimpses of the Devil. Peck was a clinical psychiatrist and author of several bestsellers in the 1970’s and 80’s including, The Road Less Traveled and People of the Lie. Glimpses is the full account of the exorcisms of two of his patients.
With degrees from Harvard and Case Western Reserve, Peck did not see the Devil behind every mental disorder. In fact, until the day he met Jersey, a patient profiled in the book, he did not believe in the Devil. His experiences with her and another patient convinced him not only of the reality of personal spiritual evil, but also of cause and effect in the spiritual world.
“There are two states of being,” Peck wrote, “submission to God and goodness or the refusal to submit to anything beyond one’s own will—which refusal automatically enslaves one to the forces of evil. We must ultimately belong either to God or the devil.”
Science is always catching up with scripture, and Peck the twentieth century scientist, had caught up with things the Apostle Paul taught in the first century about the spiritual world.
Some things we do provide an avenue for evil influence in our lives. Practicing falsehood, indulging anger, and habitual stealing, “give the devil a foothold,” Paul wrote. But who, or what, is the Devil?
The Devil is a hateful, violent, twisted being that despises God and loathes people. He is attracted to sinful behavior like flies to garbage, laying his larvae of spite, lust, and greed to hatch into maggots of bitterness, violence, sexual predation, and avarice. Thus, his evil influence in life spreads like the stench of a landfill on a hot summer day.
As the Devil’s influence swells in a life that makes room for it, so the Spirit’s effect wanes. The knowledge of God’s presence, the strength to withstand temptation, the wisdom, discernment, healing, prophecy, and other manifestations along with love, joy, peace, patience and self-control fade when we ignore Him and indulge evil.
The Spirit of God is gentle, pure, and quiet. He does not go where he is not welcomed. We can choke his influence by our hard hearts. He grieves over sin in the life of a believer the way a parent is saddened by a wayward child. But when he is welcomed he brings sweet fruit.
Welcome the Spirit of God into your life. Make room for him daily through meditation on Scripture, worship with the Psalms or other spiritual songs, and prayer. Abide in Christ, trusting in his completed work for you on the cross and obeying his commands, and his Spirit’s influence and power in your life will grow.
 From the Preface.
 Ephesians 4:27
 John 20:22
 1 Thessalonians 5:19
 Ephesians 4:30