In the art of war an army must know it's own strengths and weaknesses and also that of its enemy.  In our own battle against sin it's no different.  We have a spiritual enemy that opposes us, and we also have our own sinful tendencies we have to guard against.  If we learn the tactics of the enemy and also recognize our own weaknesses, then we can begin to win in our battle for holiness more than we lose.  This teaching will both inspire and equip you to do just that.