"The gospel of Satan is not a system of revolutionary principles, nor yet a program of anarchy. It does not promote strife and war, but aims at peace and unity. It seeks not to set the mother against her daughter nor the father against his son, but fosters the fraternal spirit whereby the human race is regarded as one great “brotherhood.” It does not seek to drag down the natural man, but to improve and uplift him. It advocates education and cultivation and appeals to “the best that is within - It aims to make this world such a comfortable and congenial habitat that Christ’s absence from it will not be felt and God will not be needed. It endeavors to occupy man so much with this world that he has no time or inclination to think of the world to come. It propagates the principles of self-sacrifice, charity and benevolence, and teaches us to live for the good of others, and to be kind to all. It appeals strongly to the carnal mind and is popular with the masses, because it ignores the solemn facts that by nature man is a fallen creature, alienated from the life of God, and dead in trespasses and sins, and that his only hope lies in being born again.
In contradistinction to the Gospel of Christ, the gospel of Satan teaches salvation by works. It inculcates justification before God on the ground of human merits. Its sacramental phrase is “Be good and do good”; but it fails to recognize that in the flesh there dwelleth no good thing. It announces salvation by character, which reverses the order of God’s Word—character by, as the fruit of, salvation. Its various ramifications and organizations are manifold. Temperance, Reform Movements, “Christian Socialist Leagues,” Ethical Culture Societies, “Peace Congresses” are all employed (perhaps unconsciously) in proclaiming this gospel of Satan—salvation by works." —A. W. Pink (1886–1952)
Taken from "Another Gospel" by A. W. Pink