circumstances to limit a person's sinful behavior (Gen. 20:6, 1 Sam. 25:26). In man's conscience - The apostle Paul says that when unbelieving Gentiles "who do not have the law, by nature do what the law requires, they are a law to themselves, ...They show that the work of the law is written on their hearts, while their conscience also bears witness, and their conflicting thoughts accuse or even excuse them" (Rom. 2:14-15, ESV). By God's common grace fallen mankind retains a conscience discerning the moral value of doing good over evil. This may be based on the fact that human beings, though fallen in sin, retain a semblance of the "image of God" with which they were originally created (Gen. 9:6: 1 Cor. 11:7). Providential blessings to mankind - Human advancements that come through the unredeemed are seen as outcomes of God's common grace. For example, medical and other technological advancements that improve the lives of both the redeemed and unredeemed are seen as initiated by common grace. In summary, common grace is seen in God's continuing care for his creation, his restraining human society from becoming altogether intolerable and ungovernable, his making it possible for mankind to live together in a generally orderly and cooperative manner, and maintaining man's conscious sense of basic right and wrong behavior. Opponents agree that such phenomena appear at work in civilizations, and cannot operate outside God's providence, but to call this "grace" leads to a diminution of saving grace in the same way undue emphasis on General Revelation diminishes the ultimate authority of Scripture. Contrasted with special grace Special grace, in Reformed theology, is the grace by which God redeems, sanctifies, and glorifies his people. Unlike common grace, which is universally given, special grace is bestowed only on those whom God elects to eternal life through faith in Jesus Christ. This special grace is frequently linked with the five points of Calvinism as irresistible grace or efficacious grace. Common Grace is God working in the heart of the sinner to emulate the Christian life but not effectually saving that sinner. This is a most important distinctive of Historical Calvinism as it is a distinctive made by John Calvin in his book the Institutes of the Christian Religion and by a number of Confessions of faith for Calvinistic denominations originally in Europe. It is also the distinctive made by later theologians such as