True spiritual warfare is laid out all through Ephesians, and then restated in chapter 6.
Stand firm therefore, having girded your loins with truth,
but speaking the truth in love, we are to grow up in all aspects into Him who is the head, even Christ,
— Ephesians 4:15
if indeed you have heard Him and have been taught in Him, just as truth is in Jesus,
— Ephesians 4:21
Therefore, laying aside falsehood, speak truth each one of you with his neighbor, for we are members of one another.
— Ephesians 4:25
and having put on the breastplate of righteousness,
and put on the new self, which in the likeness of God has been created in righteousness and holiness of the truth.
— Ephesians 4:24
(for the fruit of the Light consists in all goodness and righteousness and truth),
— Ephesians 5:9
and having shod your feet with the preparation of the gospel of peace;
For He Himself is our peace, who made both groups into one and broke down the barrier of the dividing wall,
— Ephesians 2:14
And He came and preached peace to you who were far away, and peace to those who were near;
— Ephesians 2:17
in addition to all, taking up the shield of faith with which you will be able to extinguish all the flaming arrows of the evil one.
For by grace you have been saved through faith; and that not of yourselves, it is the gift of God;
— Ephesians 2:8
in whom we have boldness and confident access through faith in Him.
— Ephesians 3:12
so that Christ may dwell in your hearts through faith; and that you, being rooted and grounded in love,
— Ephesians 3:17
And take the helmet of salvation
In Him, you also, after listening to the message of truth, the gospel of your salvation—having also believed, you were sealed in Him with the Holy Spirit of promise,
— Ephesians 1:13
and the sword of the Spirit, which is the word of God.
so that He might sanctify her, having cleansed her by the washing of water with the word,
— Ephesians 5:26
Let’s not make this into some sort of mysticism.