The word of God is also likened to a sword.
For the word of God is living and active and sharper than any two-edged SWORD, and piercing as far as the division of soul and spirit, of both joints and marrow, and able to judge the thoughts and intentions of the heart. —Hebrews 4:12 NASB
Stand firm therefore, having girded your loins with truth, and having put on the breastplate of righteousness, and having shod your feet with the preparation of the gospel of peace; in addition to all, taking up the shield of faith with which you will be able to extinguish all the flaming arrows of the evil one. And take the helmet of salvation, and the SWORD of the Spirit, which is the word of God. —Ephesians 6:14-17 NASB