Too many professed believers in Christ are resting on their laurels—are living like they are satisfied with their past achievement (salvation), so much so that they refuse to consider additional effort from them is necessary. They have assumed that their salvation automatically made them the Bride of Christ—made them saintly Overcomers. As a result, they either overlooked the Scripture that commands them to work out their own salvation, or they read and studied said Scripture but concluded it does not pertain to them.
Our knowledge of spiritual warfare and the proper mindset/attitude we need to have about our unseen war come from knowing God’s Divine Truths. That is why He provides us with at least 39 Bible verses/passages that either deal specifically with spiritual warfare or the godly attitude we need to have about the ways the devil is fighting us (God’s Children and Christ’s Soldiers) for our living souls—our minds, wills, desires, determinations, consciences, affections, emotions, personalities, five senses, common sense, and so on and so forth. In short, since we ARE living souls who HAVE living souls, we need to know and understand that the devil is after everything that pertains to our living souls (where the devil truly loves to operate; where he definitely loves to make his appeal to our emotions and affections—our fleshly lusts, desires, and appetites).
Many people who call themselves Christians often behave more ruthlessly than career criminals. For sure, there are far too many members in the Body of Christ who are fraudulent, but also there are many spiritually anemic members, too.