11 Put on the whole armor of God, that you may be able to stand against the wiles of the devil. 12 For we do not wrestle against flesh and blood, but against principalities, against powers, against the rulers of the darkness of this age, against spiritual hosts of wickedness in the heavenly places.
The struggles and challenges that we face are from the unseen evil world, which oppose everything and everyone that is of God. We are fighting against the principalities, powers, rulers of the darkness and against spiritual hosts of wickedness.
We need to protect ourselves from them by wearing the full armor of God i.e. truth, righteousness, the gospel, faith, salvation, the Word of God, and prayer (Ephesians 6:13-17).
When we don’t put it on, we deceive ourselves and turn against flesh and blood, which is our own brother who is created in the image of God.
Let’s always wear the full armor of God and walk in victory.