By way of personal testimony, I became a Christian not too long after I concluded the devil was real.
At university, I came in contact with bright people involved in the occult, e.g., a roommate studying architecture who was into tarot and astrology; another roommate’s girlfriend with a master’s in microbiology who read auras; a girl interested in me who was finishing her doctorate in chemistry and was a practicing witch.
Then, bad things started happening to me which were extraordinary; and I, as an agnostic, finally concluded them to be demonic and devilish. I ended up dropping out of school and moving to Europe, to visit my parents. But my troubles followed me.
The only people I had ever heard discuss the devil as a real person were those exhausting, Bible-believing Christians, with their impossible standards and ideas. Nevertheless, increasing suffering, oppression, and fear overcame my intellectual rejection of Christianity, and I cried out alone in the night to God, “If you are real, save me! If you are real, I give you my life…if you will take it.”
My first months as a Christian were beautiful and horrendous. I experienced supernatural things, saw terrible things, and was delivered of very dark things. It was like an explosion. It was like a war around me. While still in Europe, I was led by my Christian friends into water baptism by immersion, Holy Spirit baptism with tongues, and intense Bible study.
Sadly, religion also began to pour in, gradually supplanting my personal relationship with the Lord. Over the years, I got weighed down with self-centered legalism and intellectualism, at the expense of Jesus-centered life through the Spirit. But by God’s grace, I am getting back on track.
I have never again seen all the supernatural craziness that I saw in those first months as a new Christian, right after Jesus came into my life. But I see my own experience as perhaps representative of the Church at large.
When Jesus, The Light, began his public ministry, there was a war, an explosion. Nevertheless, at a time when demons were being exposed and cast out (even by Judas Iscariot), the Sadducees (like some in this forum) apparently maintained that there simply were no demons.
There came to him some Sadducees, those who deny that there is a resurrection,
For Sadducees say that there is no resurrection—and no angel or spirit; but the Pharisees confess both.
At the risk of sounding patronizing, I encourage all of us to be hungry and childlike before God: seeking the Baptism in the Spirit with speaking in tongues, the gift of the discerning of spirits, and especially pursuing Jesus wholeheartedly, because,
2 Thes. 2:9-10
The coming of the lawless one will be in accordance with how Satan works. He will use all sorts of displays of power through signs and wonders that serve the lie, and all the ways that wickedness deceives those who are perishing. They perish because they refused to love the truth and so be saved.
2 Peter 3:3-4
Above all, you must understand that in the last days scoffers will come, scoffing and following their own evil desires. They will say, “Where is this ‘coming’ he promised? Ever since our ancestors died, everything goes on as it has since the beginning of creation.”