J. Gresham Machen on subjective atonement theories

People sometimes say, indeed, that it makes little difference what theory of the atonement we may hold. Ah, my friends, it makes all the difference in the world. When you contemplate the cross of Christ, do you say merely, with modern theorists, ‘What a noble example of self-sacrifice; I am going to attain favour with God by sacrificing myself as well as He.’ Or do you say with the Bible, ‘He loved me and gave Himself for me; He took my place; He bore my curse; He bought me with His own most precious blood.’ That is the most momentous question that can come to any human soul. (J. Gresham Machen, The Active Obedience of Christ)