The Whole Armour of God
is,
The Spiritual Armor that God has given us to wear to protect us as
we walk through our lives
in this world.
Every piece of our armour is named just as were the knights' armour of old...The helmet, breastplate,
loin covering, belt, foot coverings, shield,
and as the only weapon, the sword.
Each piece of armour serves to
protect us, body and soul;
safe and sound, 
in Christ.
 

 

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. 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.  Stand therefore, having your loins girt about with truth, and having on the breastplate of righteousness; and your feet shod with the preparation of the gospel of peace; above all, taking the shield of faith, wherewith ye shall be able to quench all the fiery darts of the wicked.  And take the helmet of salvation, and the sword of the Spirit, which is
the word of God:
praying always with all prayer
and supplication in the Spirit, and watching
thereunto with all perseverance
and supplication  for
all saints...
  

Ephesian 6     
13-18