False religion may prevail, iniquity may abound, the love of many may wax cold, the cross of Calvary may be lost sight of, and darkness, like the pall of death, may spread over the world; the whole force of the popular current may be formed to overthrow the people of God; but in the hour of greatest peril the God of Elijah will raise up human instrumentalities to bear a message that will not be silenced.
Any darkness that comes out in my life is the fruit of my own appetites, and it's my choice either to feed or starve those appetites. I was purposely feeding on music and movies with dark, violent themes and plenty of sexual content. All of that takes root in our thought lives and affects everything we do. It clouds our communication with God and can limit how he uses us. If someone is in a dark place and needs help, we're probably not going to have suitable answers when we're gorging on trash.