After enumerating the essential defensive pieces of our spiritual armor in Ephesians 6:11-17, the Apostle Paul admonishes us to take up our one offensive spiritual weapon. Whereas all the other pieces of our armor are critical for our defense against the devil, only “the sword of the Spirit, which is the Word of God,” can be used by us to fight off our spiritual foe.

If we are ignorant of God’s Word we are essentially unarmed against our spiritual adversary. Satan can freely attack us at will without any fear of being repelled by a sword of the Spirit wielding Christian soldier. Not knowing God’s Word leaves us with nothing to fight back with against the wicked one’s unrelenting war on us. Therefore, an unstudied Bible is the sign of an unarmed Christian soldier.