In spiritual warfare, a little carelessness can do a great damage. One thing you must understand is that the Devil is ever serious and determined to take every territory and individual as captive, he never rest nor have a fun time. The Bible says, "Be sober, be vigilant; because your adversary the devil, as a roaring lion, walketh about, seeking whom he may devour: Whom resist stedfast in the faith, knowing that the same afflictions are accomplished in your brethren that are in the world." 1 Peter 5:8-9 (KJV). The ministry of the Devil is of three folds: to kill, to steal and to destroy, John 10:10. There is nothing he roams about seeking to do but to accomplish his assignment upon the earth and man that dwell in it. We do not only have to resist him, we also need to attack his camp and keep attacking until the Devil is cast into the lake of fire.