Ephesians 6:13 Wherefore take unto you the whole armour of God, that you may be able to withstand in the evil day, and having done all, to stand.
‘Wherefore take unto you the whole armour of God, that ye may be able to withstand in the evil day.’ Because you have such enemies (6:12), be clothed with the armour of God. It will make you invulnerable and victorious if you choose to stay in this state of awareness.
‘Whole armour’ Two kinds of armour:
 Defensive armour for protection: (1) The helmet [Greek: perikephalaia] for the head, of various forms embossed with the company emblem; (2) The girdle [Greek: zoma] for the loins to brace the armour tight against the body, and support daggers, swords and other weapons; (3) The breastplate [Greek: thorax] in two parts – one to cover the breast and the other to cover the back to protect the vital organs of the body. It extended down to the legs; (4) Greaves [Greek: knemides] to cover the shins. A kind of solea was often used to protect the feet from rocks, thorns, etc.; (5) The shield [Greek: thureos] to protect the body from blows and cuts.
 Offensive armour for conquest: The sword [Greek: machaira] to destroy the enemy and bring his surrender. Besides the sword, other weapons of offence were used – the spear, lance, battle-axe, club, bow and arrows, and sling
‘Having done all to stand’ – A military phrase; having conquered all, stand, ready to do battle again (6:11).