And take the helmet of salvation, and the sword of the Spirit, which is the word of God;
Ephesians 6:17
Surrounding context
6:16 above all, taking the shield of faith with which you will be able to quench all the fiery darts of the wicked one.
6:17 And take the helmet of salvation, and the sword of the Spirit, which is the word of God;
6:18 praying always with all prayer and supplication in the Spirit, being watchful to this end with all perseverance and supplication for all the saints--