"As rational persons, we were made to bear God's moral image-that is, our souls were made to "run" on the practice of worship, law-keeping truthfullness, honesty, discipline , self-control, and service to God and our fellows. If we abandon these practices, not only do we incur guilt before God; we also progressively destroy our own souls. Conscience atrophies, the sense of shame dries up, one's capacity for truthfulness, loyalty and honesty is eaten away, one's character disintegrates. One not only becomes desperately miserable; one is steadily being dehumanized. This is one aspect of spiritual death. Richard Baxter was right to formulate the alternatives as "A Saint-or a Brute":that, ultimately, is the only choice, and everyone, sooner or later, consciously or unconsciouslyopts for one of the other."
~ J.I. Packer, Knowing God p. 114