Armor part 2

Ephesians 2:2  (KJV)
Wherein in time past ye walked according to the course of this world, according to the prince of the power of the air, the spirit that now worketh in the children of disobedience:
With out Jesus we serve our flesh touch, taste and feel. It had to be of use to us. With Christ in our life we live to serve Him not our selves. the spiritual battle that we fight includes our selfish sin nature. That sin nature is always trying to destroy us.
; 13 Wherefore take unto you the whole armour of God, that ye may be able to withstand in the evil day, and having done all, to stand.6  2Cor 10:4; 14 Stand therefore, having your loins girt about with truth, and having on the breastplate of righteousness; Luke 12:35; 1Pet 1:13; Isa 59:17; 2Cor 6:7; 15 And your feet shod with the preparation of the gospel of peace; 16 Above all, taking the shield of faith, wherewith ye shall be able to quench all the fiery darts of the wicked. 17 And take the helmet of salvation, and the sword of the Spirit, which is the word of God: Isa 59:17; 1Thess 5:8; Heb 4:12; Rev 2:16; 18 Praying always with all prayer and supplication in the Spirit, and watching thereunto with all perseverance and supplication for all saints;
We must rely on the armor of God.
The Christian life is a warfare. In order to wage this successfully we must understand the nature of the foes we have to contend with, because the weapons and armor will have to be selected according to the character of the attack that is made upon us.
Not human. It is hard enough to think of the obstructive and tempting influence of bad men. But we have something worse to resist. We are attacked by an unearthly army. The black tide of hellish sin surges against the shores of our human world and bespatters us with its withering spray. The spiritual world is the most real world. These spiritual foes are the most truly existing enemies we can ever meet. Our experience of them is in spiritual attacks, i.e. in temptations.