You have prayed wisely, for the warfare that surrounds us is not against flesh and blood, but against the unseen rulers of darkness, against spiritual hosts of wickedness. The armor you seek is not forged of iron or leather, but of truth, righteousness, faith, and the good news of peace. And this armor is not placed upon us by words alone, but by a living faith that reaches out and takes hold of the promises of God.
Consider first the girdle of truth. The enemy deals in lies and shadows, but the one whose waist is bound with the truth of God’s word cannot be tripped by deception. This truth is not merely a doctrine held in the mind, but a sincerity of soul, a contrite heart that loves the light and refuses to walk in craftiness. Before you can fasten this belt, you must ask God for that sober, humbled spirit which is His gift, a heart watchful and awakened. For if we laugh and take life easily, we will be overthrown by our own remissness even before the conflict begins.
Then you take up the breastplate of righteousness. Not a righteousness of your own stitching, but the righteousness that comes from God through faith. Yet do not think this breastplate is put on without your own resolve. When Paul commands you to put it on, he means you must draw near with full assurance of faith and a life that clings to what is good. As a breastplate guards the chest, so let faith and love shield your inmost affections. Where the power of the soul is fortified with love, no fiery dart of envy, hatred, or hypocrisy can pierce through. Let your love be sincere and active, and the enemy’s devices will be in vain.
Your feet must be shod with the preparation of the gospel of peace. This means that wherever you stand, you stand on the firm ground of Christ’s victory. You do not need to strive for peace with God; the gospel announces it is already given. Let that readiness keep you from stumbling when the ground shakes. And remember that a soldier’s footing is secure only when he is not entangled in the affairs of this life but walks in the Spirit, praying at all times.
Now the shield: faith. See to it that this faith is not scanty, covering only a part of the soul while leaving the feet or the head exposed. Faith must be large enough to cover your whole body. It is a shield that quenches all the flaming darts of the evil one, the darts of doubt, fear, lust, and despair. But where there are endless reasonings and scrutinizings, where you demand to see with your eyes what is promised, the shield becomes small and heavy. Faith needs a generous and vigorous soul, one that rises above the weakness of human logic and trusts that God is, and that He is a rewarder of those who diligently seek Him. Hold out this shield, and none of your armor will be injured.
The helmet is the hope of salvation. As the helmet protects the head, the seat of our thoughts, so this hope sets the mind upright and does not allow it to falter under blows. A sure hope that you will inherit eternal life keeps the head erect, so that nothing from outside can crush your thinking. This hope is born of the promises of God, and it is inseparable from the faith and love you already wear.
You have taken the sword of the Spirit, which is the Word of God. But a sword lying in the scabbard does not wound the enemy. You must wield it, by speaking the truth, by resisting temptation with Scripture as Christ did in the wilderness, and by letting that word dwell in you richly. Yet remember that even the sword is handled properly only through prayer. Prayer is the very breath of the warrior; it is the great weapon that summons the Commander to the field. He stands ever ready to help, unconquerable, having supplied you with these arms. Therefore, as you pray this armor upon yourself and all believers, do not think the act is finished when the words cease. The petition must become a life. Early in the morning, before you face the battles of the marketplace, the tempests and hidden rocks of each day, rise up and by prayer and supplication make God propitious. Then you will go forth with security, and no enemy will laugh at you.
One caution more: when you have put on the whole armor, do not trust in the armor itself but in the Lord whose armor it is. The fall of Peter teaches us that even the most zealous can be sifted like wheat if they rely on their own strength. He who said, “I will never fall,” was permitted to stumble so that he might learn that his standing depended entirely on the prayer of Christ: “I have prayed for you, that your faith may not fail.” So wear this armor with deep humility, knowing that it is given and sustained by grace. Boast only in the Lord.
Stand therefore, having your loins girt about with truth, and having on the breastplate of righteousness. Let your faith be a full-body shield, your hope a fitted helmet, and the Word your ready sword. And above all, watching thereunto with all perseverance and supplication for all saints, just as you have prayed. For this warfare is not yours alone; we wrestle alongside the whole body of Christ. As you intercede for others, your own armor is polished bright. The enemy will flee when resisted by a faith that is firm, a love that is sincere, and a hope that is anchored in heaven. Go forth in that strength, for the Lord Himself goes before you.