Ephesians 6:13, 16-17

Wherefore take unto you the whole armour of God, that ye may be able to withstand in the evil day, and having done all, to stand.

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