Francis A. Schaeffer on Relativism and JesusThe God Who Is There, (Downers Grove, IL: InterVarsity Press, 1968), p136.
But if I live in a world of nonabsolutes and would fight social injustice on the mood of the moment, how can I establish what social justice is? What criterion do I have to distinguish between right and wrong so that I can know what I should be fighting? Is it not possible that I could in fact acquiesce in evil and stamp out good? The word love cannot tell me how to discern, for within the humanistic framework love can have no defined meaning. But once I comprehend that the Christ who came to die to end the plague both wept and was angry at the plague’s effects, I have a reason to fight that does not rest merely on my momentary disposition, or the shifting consensus of men.