“In addition to all this,” Paul writes in Ephesians 6:16, “take up the shield of faith, with which you can extinguish all the flaming arrows of the evil one.”
All the flaming arrows. Not some. Not most. All.
That is an extraordinary promise. And it is built on an extraordinary piece of armour, one that, when understood rightly, will change both how you pray and how you face every trial that comes your way.
The Roman Shield Paul Had in Mind
When Paul described the shield of faith, his Roman readers would have immediately pictured a specific type of shield: the scutum, the large, rectangular body shield used by Roman legionaries. This was not a small buckler meant to deflect a blade. The scutum was approximately four feet tall and two and a half feet wide, large enough to crouch behind entirely and cover the whole body from chin to ankle.
More remarkably, it was constructed with layers of wood and leather, and before battle, soldiers would soak their shields in water. Enemy forces frequently used fire arrows, arrows dipped in pitch and set alight before firing. A dry shield could catch fire. A water-soaked shield would extinguish the flame on contact.
Paul chose this image deliberately. Faith, properly exercised, does not merely deflect the enemy’s attacks. It extinguishes them, puts them out completely, neutralises them before they can cause damage.
What Are the Flaming Arrows?
The flaming arrows of the evil one are not primarily physical. They are thoughts, accusations, and lies launched with precision at the most vulnerable parts of your inner life. They come at the moments of greatest weakness, in the aftermath of failure, in the silence of sleepless nights, in the middle of prolonged trials when the silence of God feels unbearable.
They sound like this: God doesn’t really love you. You’ve gone too far this time. Your prayers aren’t reaching anyone. If you have ever heard thoughts like these in moments of spiritual vulnerability, you have experienced the flaming arrows. They are designed not to wound the body but to extinguish your confidence in God, because a believer who has lost confidence in God is a believer who stops praying, stops obeying, stops advancing.
This is why the shield goes up.
Faith in What, Exactly?
The shield is not faith in faith, not a general posture of optimism or positive thinking. It is faith in the specific promises, character, and power of God as revealed in Scripture and demonstrated in Jesus Christ.
When a flaming arrow of accusation comes, you are worthless, the shield of faith raises the counter-reality: “I am fearfully and wonderfully made” (Psalm 139:14). “There is now no condemnation for those who are in Christ Jesus” (Romans 8:1).
When the arrow of despair comes, nothing will ever change, the shield says: “He who began a good work in you will carry it on to completion” (Philippians 1:6). “Weeping may stay for the night, but rejoicing comes in the morning” (Psalm 30:5).
The shield is effective precisely because it is specific. You cannot extinguish flaming arrows with vague, general positivity. You need the particular promises of God, held with conviction, aimed directly at the specific attack. A soldier who does not know where his shield is cannot raise it in time.
Faith Grown Through the Soaking
Recall that the Roman soldier soaked his shield before battle. This soaking took time; it was not done in the heat of the moment but in the quiet preparation before the battle began.
Your faith is soaked in the quiet moments: the consistent reading of God’s Word, the sustained prayer life, the remembering of God’s faithfulness in past seasons, the worship that recalibrates your perspective when circumstances threaten to overwhelm it. This is why the spiritual disciplines matter so urgently. They are the preparation that makes your shield effective when the arrows come.
The Shield Wall
Roman legionaries did not fight as isolated individuals. In the most intense moments of battle, they would lock their shields together to form a testudo, a tortoise formation, covering not just themselves but their fellow soldiers. The unit became a single, mobile fortress.
This is a profound picture of what happens when the church prays together. When you are under spiritual attack and your own faith feels thin, the faith of your brothers and sisters around you becomes part of your shield. This is why isolation is so dangerous in spiritual warfare. In community, your faith covers your neighbour’s weakness, and their faith covers yours.
Taking Up the Shield Today
Paul uses an active verb: take up. The shield is not automatically raised. It must be deliberately picked up. This means that faith requires an intentional, daily act of the will. You do not drift into a life of faith. You choose it, repeatedly, in the face of every circumstance that argues against it.
Today, whatever arrows are in flight toward you, raise the shield. Name the promise of God that speaks directly to the attack. Pray it out loud. Call a fellow believer and ask them to stand with you in faith. Open the Word and let it soak your heart until the fire has nowhere to catch.
The enemy’s arrows are real. But they meet a shield that has never failed, and a God whose faithfulness is the reason that shield works at all.
Raise it. Hold it. And stand.
— Ezekiel Kevin Annan
