Ephesians 6:16-20

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. With all prayer and petition pray at all times in the Spirit, and with this in view, be on the alert with all perseverance and petition for all the saints, and pray on my behalf, that utterance may be given to me in the opening of my mouth, to make known with boldness the mystery of the gospel, for which I am an ambassador in chains; that in proclaiming it I may speak boldly, as I ought to speak.