Be sober and self-controlled. Be watchful. Your adversary the devil, walks around like a roaring lion, seeking whom he may devour.
Your adversary the devil  — This is the reason why ye should be sober and vigilant; ye have an ever active, implacable, subtle enemy to contend with. He walketh about-he has access to you everywhere; he knows your feelings and your propensities, and informs himself of all your circumstances; only God can know more and do more than he, therefore your care must be cast upon God.