“In addition to all this, take up the shield of faith, with which you can extinguish all the flaming arrows of the evil one” Eph 6.16 NIV.
A shield provides protection. We need protection from the evil one. He is the devil, the father of lies and a highly successful warrior against the sons of man. He always takes aim in order to bring us down spiritually. Our protection from the evil one is faith. This faith must be taken up. It must be used. We must put our faith into play in order for it to protect us. Faith is useless to us if not taken up.
How do we take up the shield of faith? By practicing the word of God. By obeying the commandment of God. By believing the promises of God. By proclaiming the salvation of God. By putting first the kingdom of God.
Faith is active. It bids us to take hold of its power. Without it we cannot be successful against the evil one. Without it we cannot be successful in the victory of God.