Ephesians 6:18

15 and having fitted your feet with the preparation of the gospel of peace;

16 above all, taking up the shield of faith, with which you will be able to quench all the fiery darts of the evil one.

17 Take the helmet of salvation, and the sword of the Spirit, which is the word of God;

18 with all prayer and requests, praying at all times in the Spirit, and being watchful to this end in all perseverance and requests for all the saints:

19 On my behalf, that utterance may be given to me in opening my mouth, to make known with boldness the mystery of the gospel,

20 for which I am an ambassador in chains; that in it I may speak boldly, as I ought to speak.

21 But that you also may know my affairs, how I am doing, Tychicus, the beloved brother and faithful servant in the Lord, will make known to you all things;