10 For the rest, my brethren, be strong in the Lord, and in the power of his might.
11 Put on the full armor of God, so that you can stand firm against the snares of the devil.
12 For we wrestle not against flesh and blood, but against principalities, against powers, against the rulers of the darkness of this world, against spiritual hosts of wickedness in the heavenly places.
13 Therefore take all the armor of God, so that you may be able to withstand the bad day, and having finished everything, stand firm.
14 Stand firm then, with your loins girt about with the truth, and clothed with the breastplate of righteousness,
15 and shod your feet with the preparation of the gospel of peace.
16 Above all, take the shield of faith, with which you can quench all the fiery darts of the evil one.
17 And take the helmet of salvation, and the sword of the Spirit, which is the word of God;
18 praying at all times with all prayer and supplication in the Spirit, and watching over it with all perseverance and supplication for all the saints;
Ephesians 6: 10-18
Ephesians guides us a life with armor of faith.