Ephesians 6:14-17

So stand ready, with truth as a belt tight round your waist, with righteousness as your breastplate, and as your shoes the readiness to announce the Good News of peace. At all times carry faith as a shield; for with it you will be able to put out all the burning arrows shot by the Evil One. And accept salvation as a helmet, and the word of God as the sword which the Spirit gives you.