The Spiritual Warfare
In our modern world it's easy to forget that believers are in a Spirit-filled warfare with Satan. Our enemy is doing everything in his power to destroy the kingdom of God.
But God has given us a power greater than ourselves to "resist" the "wiles of the devil". Our spiritual armour guarantees victory.
There is "truth" to wear as a belt, "righteousness" to protect the heart, "shoes" (preparation for peace) to protect the feet, a "shield" (faith) to deflect the arrows of the enemy, a "helmet" (salvation) to protect the head, and a "sword" (God's Word) to engage the enemy.
Ephesians 6:11,12 Put on the whole armour of God that ye may be able to stand against the wiles of the devil. For we wrestle not against flesh and blood but against principalities, against powers, against the rulers of the darkness of this world, against spiritual wickedness in high places.