The highest truths ever given to the human race from God have come to us via Paul, who received them from the glorified Christ. This is why Paul is the writer who discloses the truth of the armor of God.
The armor of God exists on our
behalf. We don’t “put it on” in the sense of donning it upon our person, but in the sense of realizing that it is an active, available defense against Satan’s lies.
The armor of God protects us from Satan’s lies. And here are the glorious details.