God’s Glory Reflected in Christ 2Co 4:1-6
The servant of Christ must never forget that he once needed and obtained mercy. This will sustain him in many an hour when heart and flesh fail. His weapon is the truth, his appeal to conscience. Others may vie with him in brilliant imagination, fervid enthusiasm, and intellectual force, but he has unrivaled supremacy in the realm of conscience. As Richard I of England, immured in a castle-dungeon, recognized the voice and song of his troubadour, singing outside the castle gate a strain familiar to them both, and responded note for note, so does conscience awaken and respond to the truth, which it recognizes as the voice of God.
Why, then, does the gospel fail? Not through any defect in itself, nor because of some arbitrary decree on the part of God, but because the god of this world has blinded the eyes of the heart by the glamour of worldly prosperity and success, or perhaps by the covering film or scale of evil habit, so that the light of the dawn, stealing over the world, is unable to penetrate the darkened life.