Consciousness of sin

Two quotes from Christianity and Liberalism by J. Gresham Machen:

The consciousness of sin was formerly the starting-point of all preaching; but today it is gone. Characteristic of the modern age, above all else, is a supreme confidence in human goodness; the religious literature of the day is redolent of that confidence. Get beneath the rough exterior of men, we are told, and we shall discover enough self-sacrifice to found upon it the hope of society; the world's evil, it is said, can be overcome with the world's good; no help is needed from outside the world.

The more one observes the condition of the Church, the more one feels obliged to confess that the conviction of sin is a great mystery' which can be produced only by the Spirit of God. Proclamation of the law, in word and in deed, can prepare for the experience, but the experience itself comes from God. When a man has that experience, when a man comes under the conviction of sin, his whole attitude toward life is transformed; he wonders at his former blindness, and the message of the gospel, which formerly seemed to be an idle tale, becomes now instinct with light. But it is God alone who can produce the change. Only, let us not try to do without the Spirit of God.