Many may not want to agree to the fact that life is a battlefield. But it is, beyond every doubt. And as Christians, we have been equipped with the right arsenal not to be defeated by these battles— waged by forces of darkness.
Hello, fellow parishioners of 
First of all, it is imperative for us to look at what an armour means.
source
Now, let's look at...
The Whole Armour Of God
The English rendering of the Greek word "panoplia" is "whole armour", which was derived from two Greek words; namely: "pas" (all, every, or whole) and "haplon" (weapon; armour, tool or instrument of war). Thus, the whole armour of God is a spiritual armour which is far different from the physical armoury the army or terrorists use in attacking their opponents. This is because spiritual warfare is not carnal. And as such, we must judge spiritual things with spiritual things; it will be a costly and a terrible mismatch for one to want to apply carnality in spiritual affairs.
Check out the collection of God's armour...
10 Finally, my brethren, be strong in the Lord and in the power of His might.
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.
13 Therefore take up the whole armor of God, that you may be able to withstand in the evil day, and having done all, to stand.
14 Stand therefore, having girded your waist with truth, having put on the breastplate of righteousness,
15 and having shod your feet with the preparation of the gospel of peace;
16 above all, taking the shield of faith with which you will be able to quench all the fiery darts of the wicked one.
17 And take the helmet of salvation, and the sword of the Spirit, which is the word of God;
Ephesians 6:10-17
Look at the collection...
Truth (belt)
Righteousness (breastplate)
Gospel of peace; good news (boots)
Faith (shield)
Salvation (Helmet)
The word of God (sword)
Looking at God’s armoury highlighted to us in Ephesians 6:10-17, we will discover that the words ‘whole’ and ‘armour’ were used; meaning that they are singularly whole (so to say); complete—no one exist in isolation of the other. So having truth signifies the presence of righteousness, and having righteousness is possessing the word of God, and just like that.
What is the purpose of this set of armour?
- To stand against the deceit and schemes of the Devil (Eph. 6:11)
- To pull down stronghold (2 Corinthians 10:4-5)
- To stand tall amidst of adversity.
- To live, walk and operate in the consummated victory of Christ.
Conclusion
Truly, every believer ought to understand that the spirit of the new man has been graciously delivered from the captivity of the devil and that, we have been given the power of attorney— to act 'legally' in the authority of Christ (Mark 16:15-17). To this end, the whole armour of God is available to all Christians. However, it is a thing for something to be available for one to use, and it's another thing for a person to use what has been made available to him or her.
Holy Spirit help us to always optimally be mindful of and to utilise this whole armoury you've provided to us, to walk and soar in your victory forever more. Amen
