Eph. 6, 10-17.
Finally, my brothers, be strong in the Lord and in the power of his might. Put on the armor of God, that you may be able to stand against the cunning attempts of the devil. For we do not have to fight with flesh and blood, but with princes and mighty men, namely with the lords of the world who rule in the darkness of this world, with the evil spirits under heaven. For this reason, take up the armor of God, so that you may resist in the evil day, and do all that is good, and keep the field. Stand therefore, girding your loins with truth, and clothed with the canker of righteousness, and booted up in legs, as ready to advance the gospel of peace, that ye may be prepared. Above all, take hold of the shield of faith, with which you can quench all the fiery darts of the wicked one. And take the helmet of salvation, and the sword of the Spirit, which is the word of God.
You will find this epistle interpreted according to its length among the special interpretations and sermons on the epistles of St. Paul. [Namely in the sermon on Christian armor and weapons, on Eph. 6, 10. ff., which will be included in volume IX of our edition.]