The devil, no doubt, is everywhere. That malicious spirit is unwearied in his efforts to do us harm. He is ever watching for our halting, and seeking occasion to destroy our souls. But nowhere perhaps is the devil so active as in a congregation of Gospel-hearers. Nowhere does he labour so hard to stop the progress of that which is good, and to prevent men and women being saved. From him come wandering thoughts and roving imaginations—listless minds and dull memories—sleepy eyes and fidgety nerves—weary ears and distracted attention. In all these things Satan has a great hand. People wonder where these things come from, and marvel how it is that they find sermons so dull, and remember them so badly! They forget the parable of the sower. They forget the devil.
J. C. Ryle (1816 – 1900)