In addition to all this, take up the shield of faith, with which you can extinguish all the flaming arrows of the evil one. Ephesians 6: 16
The shield is a defensive piece of armor, usually made from leather and bronze. It was strapped to the soldier’s arm, so he could defend the enemy’s blows or deflect arrows. Shields were solid, heavy, and large enough to cover the soldier with protection.
Likewise, faith in Christ and His blood covers us from attacks of the enemy.
For it is by grace you have been saved, through faith—and this is not from yourselves, it is the gift of God…Ephesians 2: 8
Faith is a gift from God…but what is it?