“And take the helmet of salvation, and the sword of the Spirit, which is the word of God” (Eph 6:17).
The first time we see the devil tempt anyone, he tested Eve’s trust in the word of God. She was told: “…hath God said, Ye shall not eat of every tree of the garden?” Genesis 3:1. Likewise, after the baptism of Jesus, right after the Lord spoke from heaven saying: “This is my beloved son, in whom I am well pleased” (Matthew 3:17), the devil tempted Jesus beginning with the same words “if you are the son of God…”
The devil’s greatest attack is against your knowledge of the word of God. He wants to keep you ignorant and defeated. This is why we must apply all diligence and sobriety to learning the word of God.
The word of God charges us thus: “Wherefore take unto you the whole armour of God, that ye may be able to withstand in the evil day” (Ephesians 6:13). Temptations must meet you prepared. Paul then uses an armour as figure of speech to describe Christian graces. This should help us see that they are our defence in the day of trouble.
“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” (Verses 13-17). What’s interesting is that while the rest of the armour are defensive in nature, he calls the word of God a sword. This is an offensive weapon. God doesn’t want us to merely survive the assaults of the enemy. He wants us to be victorious, and only with the word of God can we be truly victorious.