Everybody has faith, but what are you putting your faith in? The enemy sees whether your faith is placed in Me or whether your faith is attached to something or someone else. He then acts accordingly: as do I! We both act according to your faith.
Faith is unseen by human eyes, but it is clearly seen in the spiritual realm. Sure, faith can be seen through your actions, but no one knows what is driving your behavior or the motive of your heart, except for Me!
Human eyes can’t see the armor of My Father either, but the enemy is acutely aware of both your faith and the armor that you may or may not be wearing. Do not leave yourself open to the battle raging around you: put on the whole armor of God so you will be able to stand against the devil.
What armor do you think you’re wearing, but is actually missing?
Jesus Christ, the Armor Bearer
The Helmet of Salvation