No one enjoys a good joke about the devil more than Satan himself.
He loves it when you tell one to make him out a buffoon or the warden of hell who welcomes in various evil-doers and sends them to their infernal rewards. He really gets a high when you make him out to be so outlandish that no one in his right mind would believe in such a goon.
The devil honestly does not care whether you believe in him or not. There is not a word in Scripture that says one has to believe in the devil in order for him to do his dastardly worst in them or through them.
Millions of people today scoff at the idea of Satan, then turn around and do his dirty work for him.
The people who believe most in Satan are God’s choice servants. They who do combat with him on a daily basis have no trouble acknowledging his reality. That’s why the Apostle Peter felt he should give this reminder to those who take seriously their discipleship:
Be of sober spirit. Be on the alert. Your adversary, the devil, prowls about like a roaring lion, seeking someone to devour.
But resist him, firm in your faith, knowing that the same experiences of suffering are being accomplished by your brethren who are in the world.
He’s out there. Watch out.
There is nothing in Scripture that commands God’s people to become experts in Satanology. I’ve known a few people over the years who seemed to be such. Every prayer they uttered was against him, their testimonies and sermons revolved around him, and the books they wrote or read were filled with descriptions of his work.
We must work to avoid either extreme–of concentrating too much on the devil and of completely ignoring him. In between those two ditches is the road.