of fact he eschews “metaphysical considerations at all.”11 But this lack of clarity about what a nature is does not discourage Chafer from putting the concept to theological work. “Unregenerate people,” he insists, “have but one nature, while those who are regenerate have two natures. There is but one fallen nature, which is from Adam, and one new nature, which is from God.”12 The unregenerate person has only one nature, and this is “the sin nature.” The regenerate believer, on the other hand, continues