There is a sufficient answer within Reformed Theology known as the Threefold Division of the Law: Moral, Civil, and Ceremonial. The civil and ceremonial laws pertained to the nation of Israel exclusively while the Moral Law was summarized in the Ten Commandments given to Israel at Sinai. This Moral Law is that natural law (from creation) written in the heart of every person. Although marred by the fall, everyone having been created in God's image (of whose image this Law is a reflection) possesses in their conscience an innate knowledge of moral obedience or disobedience. "in that they show the work of the law written in their hearts, their conscience bearing witness and their thoughts alternately accusing or else defending them." Rom.2:15 The Civil and Ceremonial Laws given to Israel were abrogated and taken away when Christ accomplished His earthly ministry at His first advent when He created the Church, bringing in the Gentiles, creating "one new man". "The moral law doth for ever bind all, as well justified persons as others, to the obedience thereof, and that not only in regard to the matter contained in it, but also in respect of the authority of God the Creator, who gave it; neither doth Christ in the Gospel any way dissolve, but much strengthen this obligation." 1689 LBCF Ch.19 para.5 As the Threefold Division of the Law demonstrates a distinction of the laws so the Threefold Use of the Law explains different applications of the Law of God: To show or reveal our sin. To restrain our sin. To guide believers to live a life pleasing to God. Not as a way to be saved but because we are saved we desire to reflect God's holy character and will.
