"The devil is “a roaring lion, going about, seeking whom he may devour” (1 Peter 5:8). But men would beware of him, if he appeared in such a shape. . . . If a lion, bear, or some such wild beast came into town, how would all the town be raised, and be up in arms against him! But the devil is a wolf in sheep’s clothing. He is a roaring lion, but looks as harmless to men as a lamb. Hence men are bold with him, have a great deal to do with him, and think no harm, are no way upon their watch or guard against him.”
Jonathan Edwards