The necessity of the work of the Holy Spirit arises from the total corruption of human nature. We are all by nature “dead in sins.” (Eph. 2:1) However shrewd, clever and wise in the things of this world, we are all dead towards God. The eyes of our understanding are blinded. We see nothing correctly. Our wills, affections and inclinations are alienated from Him who made us. “The carnal mind is enmity against God.” (Rom. 8:7) We have naturally neither faith, nor fear, nor love, nor holiness. In short, left to ourselves, we would never be saved.

~ J.C. Ryle

Old Paths, “The Holy Spirit”, [Carlisle, PA: Banner of Truth, 1999], 271.