MacDonald was convinced that God does not punish except to amend, and that the sole end of His greatest anger is the amelioration of the guilty. As the doctor uses fire and steel in certain deep-seated diseases, so God may use hell-fire if necessary to heal the hardened sinner. MacDonald declared, "I believe that no hell will be lacking which would help the just mercy of God to redeem his children." MacDonald posed the rhetorical question, "When we say that God is Love, do we teach men that their fear of Him is groundless?" He replied, "No. As much as they were will come upon them, possibly far more. ... The wrath will consume what they "call" themselves; so that the selves God made shall appear."