Ephesians 6:14-17 New International Version
“Stand firm then, with the belt of truth buckled around your waist, with the breastplate of righteousness in place, and with your feet fitted with the readiness that comes from the gospel of peace. In addition to all this, take up the shield of faith, with which you can extinguish all the flaming arrows of the evil one. Take the helmet of salvation and the sword of the Spirit, which is the word of God.”
“The Word is called the sword of the Spirit because it comes from the Holy Spirit and works in the soul of man through the operation of the Holy Spirit.”
The last piece of a believer’s armor is their sword. It is the Word of God … the Sword of the Spirit. I affectionately refer to my small New Testament as my dagger. You cannot effectively utilize it without reading it. Just like you cannot find your way from point A to point B without some sort of Navigational device, you cannot know how to ward off the enemy without the Word of God embedded in your heart and mind.
While it should be obvious that the Armor of God listed here in Paul’s letter to the Ephesians is figurative in nature and not literal armor that we must put on, it paints a perfect picture in the believer’s mind of what each piece can and will do for you if you take full advantage of them. Note that only one piece of your armor is for offense. The rest is to protect you. Use the armor effectively so that you might repel the enemies’ attacks. Unwavering faith and trust in God will serve you well as you wind your way thru the maze of life. Until next time, walk with the King and be a blessing!
 Taken from the Christian website http://www.gladiatorsforgod.com/armour_06_sword.htm