Bible. Ephesians 6:14-18
[14]Stand therefore, having your loins girt about with truth, and having on the breastplate of righteousness;
[15]And your feet shod with the preparation of the gospel of peace;
[16]Above all, taking the shield of faith, wherewith ye shall be able to quench all the fiery darts of the wicked.
[17]And take the helmet of salvation, and the sword of the Spirit, which is the word of God:
[18]Praying always with all prayer and supplication in the Spirit, and watching thereunto with all perseverance and supplication for all saints;