Reference

Ephesians 6:17

The final piece of armor is the sword of the Spirit which is both an offensive and defensive weapon. The 'word' is applied in a variety of ways in this life. The Word of God is relevant to every age and it is helpful in the spiritual and physical realms. The Word of God repels the devil and cuts at the heart of every lie that spews from his mouth. It is this word that speaks to the lies of men in our age that are wickedly influenced by the demonic realm. God commands us to wield the sword valiantly and triumphantly because Jesus has taken already won the battle against the spiritual forces. Thus, we can take the Word of God with full confidence that He will work mightily through it.