There stood a man with his sword drawn, and his face all over with blood. Then said Mr. Great-Heart, Who art thou? The man made answer, saying, I am … - John Bunyan

The preeminent job of the church is to equip Christian for life's challenges. This requires the emphasis on being fitted with tested armor. He is tutored in the Word of God. He is encouraged to rely on the Lord alone through faith in His promises and providence. He is drilled in the doctrines of salvation and is encouraged to allow these truths to work themselves deep into his soul. He is encouraged to live righteously by having within him a righteous mind soaked in Scripture and demonstrated in right living. He is taught how to pray. He is encouraged to share his faith with those who do not have peace with God.
Chapter

Whoso beset him round
With dismal stories
Do but themselves confound;
His strength the more is.

I fought till my sword did cleave to my hand; and then they were joined together as if a sword grew out of my arm; and when the blood ran through my fingers, then I fought with most courage.