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Apr 3, 2020

Putting on the Armor of God

Thomas Smith

In one of the most famous passages in the New Testament, St. Paul outlines the spiritual armor every Christian must be clad in if we are to have victory in the spiritual life:

“Finally, be strong in the Lord and in the strength of his might. Put on the whole armor of God, that you may be able to stand against the wiles of the devil. For we are not contending against flesh and blood, but against the principalities, against the powers, against the world rulers of this present darkness, against the spiritual hosts of wickedness in the heavenly places. Therefore take the whole armor of God, that you may be able to withstand in the evil day, and having done all, to stand. Stand therefore, having girded your loins with truth, and having put on the breastplate of righteousness, and having shod your feet with the equipment of the gospel of peace; besides all these, taking the shield of faith, with which you can quench all the flaming darts of the evil one. And take the helmet of salvation, and the sword of the Spirit, which is the word of God. Pray at all times in the Spirit, with all prayer and supplication.”

Ephesians 6:10-18
Stadium in Ephesus where armored gladiators once fought
Stadium in Ephesus where armored gladiators once fought

His language here would have been especially significant to many Ephesian converts who were steeped in a culture of protective amulets, curses, and magic. New believers would leave behind these pagan counterfeits and instead clothe themselves in Christ and the true weapons of spiritual warfare.

Like a lot of Bible readers, I assumed St. Paul’s primary inspiration for the different parts of armor must have come from his observance of Roman soldiers (after all, he was likely in prison or under house arrest when he wrote this letter). However, some of the typical weapons of a first-century soldier (like the heavy javelin and leg armor) are conspicuously missing. Instead, I believe St. Paul turned primarily to his Jewish roots and the Old Testament.  

In Isaiah we see God the Divine Warrior equipped for battle in the same armor St. Paul will propose. This is a great comfort to me, as we are engaged in a cosmic battle against immense spiritual forces of darkness. We are called to clothe ourselves in his armor if we hope to be more than conquerors (Romans 8:37).

The Armor of God and Isaiah

Let’s look at the first six pieces of armor and their ancient antecedents in Isaiah:

1. Gird (belt) your loins with the truth – see Isaiah 11:5

2. Put on the breastplate of righteousness – see Isaiah 59:17

3. Shod your feet in the Gospel of peace – see Isaiah 52:7

4. Take the shield of faith – see Isaiah 21:5

5. Take the helmet of salvation – Isaiah 59:17

6. Take the sword of the Spirit (the Word of God) – Isaiah 49:2

When I became a Catholic I discovered another source of St. Paul’s imagery: the Wisdom of Solomon. In chapter 5, we see much of Isaiah’s armor again (Wisdom 5:17-20). I also learned, there were even specific prayers that our Catholic priests would say as they vested for Mass connecting their garments to the armor of God.

There is a seventh piece of armor to consider (which shouldn’t surprise us given the importance of the number seven in the Bible).  It’s in the final verse where St. Paul says, “Pray at all times in the Spirit, with all prayer and supplication” (Ephesians 6:18). We are engaged in an intense battle, and if we ever hope to stand (a term St. Paul will use four times in these verses), we have to spend significant time on our knees. I love how the Catechism puts it, “Against our dullness and laziness, the battle of prayer is that of humble, trusting, and persevering love” (CCC 2742).

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Ephesians: Discover Your Inheritance [study program]

Thomas Smith is the co-author of Wisdom: God’s Vision for Life,  Revelation: The Kingdom Yet to Come and The Prophets: Messengers of God’s Mercy. He is an international presenter for The Great Adventure Bible Timeline. Bringing a wealth of experience and insight on the Word of God to audiences across the U.S., Thomas is a repeat guest on EWTN and Catholic radio as well as a sought after parish mission and conference speaker. Thomas Smith has taught as an adjunct professor at the St. Francis School of Theology in Denver, and is the former Director of the Denver Catholic Biblical School and the Denver Catechetical School. He lives on his family ranch in southeastern Idaho and writes for his website

Featured image courtesy of Thomas Smith

This article was first published on Ascension Blog’s former home, The Great Adventure Blog, March 14, 2015. To learn more about The Great Adventure Catholic Bible studies, click here.

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  • While looking at the comments you made about prayer and ‘putting on the armor of God’ I thought that I need to relearn how to pray. My mind is filled with the day’s tasks that had been done, what could have been done and what will be accomplished the following day. God is giving me an opening to talk to Him and I am just giving Him ‘lip service’, so to speak. These readings might help me gain a bit more understanding about how to pray without all the extras that float within my mind. These are true distractions.

  • Please consider putting current examples in your articles, to make it more relevant to “today” battles. I would be very helpful and easier to understand and have more impact on some.

    • A lot of sin comes from temptations from the devil, who likes to invade our consciences and tell us “it’s all right” to do something, just like the serpent told Eve to go ahead and eat the forbidden fruit in the Garden of Eden. This could be anything, america111. “It’s ok to cheat on my taxes. It’s just a little white lie. No one will know…” Or on a grander scale, there’s the present day immorality and anything goes mentality. There’s the evil of religious persecution… those who are killed just for being Christian, or those who are persecuted for professing Christian beliefs. I know someone who was suspended from her job for her Catholic values and her future is uncertain.

      Satan is lurking everywhere and the examples are endless.

      • Thank you. I do understand it too. It is that I want to “use” this link (article) to share it with others, who may not know, so it would help if the article has current examples.

    • What is too hard about.

      1. Life is a battle between good and evil, permanently.

      2. If you are part of the army of God, you need uniform
      3. Put on the uniform.

      This article is simple, just do it.

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