Also, accept the helmet of salvation, and the sword of the spirit, that is, God’s word.”​—Eph. 6:13-17.

As the helmet protects a warrior’s head, so the “helmet of salvation” safeguards the Christian’s mental powers. By keeping our mental vision fixed on our final salvation, the prize of everlasting life, we are greatly aided in putting up a hard fight against anything that would cause us to deviate from our goal. The positive “hope of salvation” that God has imparted can be powerful enough to give us the kind of protection that a helmet gave ancient warriors.​—1 Thess. 5:8.

Often attacks are made on Christians in the form of twisted reasonings and arguments. When this happens, we need the “sword of the spirit,” God’s Word the Bible. The Scriptures are a product of the holy spirit and are designed “for reproving, for setting things straight, for disciplining in righteousness.” (2 Tim. 3:16) Equipped with accurate Bible knowledge, we can distinguish between right and wrong. (Heb. 5:14) This enables us to ‘overturn reasonings and every lofty thing raised up against the knowledge of God.’​—2 Cor. 10:5.