Evangelical authors affirm the validity of the Ten Commandments in the New Covenant
O. Palmer Robertson, "The cumulative evidence of the Scriptures points definitely toward the unified character of the biblical covenants." "The Abrahamic covenant continued to function actively after the institution of the Mosaic covenant.... The Davidic covenant in its turn did not annul or interrupt the Mosaic covenant.... The covenants of Abraham, Moses, and David actually are successive stages of a single covenant." Robertson uses Jer 31:31-34 to conclude that in the new covenant, "the substance of the law will be the same" as in the Sinaitic covenant. 1 ( O. Palmer Robertson (Th.D., Union Theological Seminary in Richmond) is principal and director of African Bible College in Uganda and adjunct professor of Old Testament at Knox Theological Seminary)
William J. Dumbrell, "What is the place of 'law' in the New Covenant framework?" He answers by saying that v. 33 refers to the Sinai law — "specifically, one presumes, to the decalogue by which the Sinai covenant was primarily expressed.... God is returning to the original intent of the Sinai covenant." 2 (William J. Dumbrell (Th.D., Harvard University) has taught at Moore Theological College in Sydney, Australia, Regent College in Vancouver, and Trinity Theological College in Singapore.)
Thomas McComiskey, notes that Jeremiah "spoke not of a change in the nature of torah, but of its localization. The covenant context of the passage would certainly lead Jeremiah's hearers to think in terms of the Mosaic legislation." 3 (Thomas Edward McCominskey was professor of Old Testament and Semitic languages and director of the Ph.D. program at Trinity Evangelical Divinity School.)
Willem VanGemeren, "The Ten Commandments...are the summary of the moral law.... Each one of the Ten Commandments expresses the moral law of God." 4 (Willem VanGemeren (PhD, University of Wisconsin) is professor of Old Testament at Trinity Evangelical Divinity School.)
Robert Knudsen, “It is also inconceivable that there will be any changes in the meaning of God's law as expressed in the Ten Commandments." 5 (Professor of Apologetics at Westminster Theological Seminary, Philadelphia, PA, 1955 - 1995; Ordained by the Presbytery of the Dakotas (OPC), 16 September 1953.)
Tremper Longman draws this conclusion: Moral law states God's principles for a right relationship with him and with others. The Ten Commandments are the most visible and powerful expression of God's will for his people. As we read the New Testament and reflect on the Bible as a whole, we see that these commands are still operative. Thus Jesus heartily approved a legal expert's summary of the Ten Commandments. 6 (An Old Testament theologian, professor and author of several books)
Walter C. Kaiser, Jr, “Since the [ten] commandments, both old and new, are based on the character of God, which does not change, they are still relevant”. 7 (American evangelical Old Testament scholar)
1) O. Palmer Robertson, The Christ of the Covenants (Phillipsburg, N.J.: Presbyterian and Reformed, 1980), p. 28,33, 41, 281-282
2) William J. Dumbrell, Covenant and Creation: A Theology of the Old Testament Covenants (Grand Rapids, Mich.: Baker and Carlisle, U.K.: Paternoster, 1993), pp. 178, 180
3) Thomas Edward McComiskey, The Covenants of Promise: A Theology of the Old Testament Covenants (Grand Rapids: Baker, 1985), p. 84.4) Willem A. VanGemeren, "The Law Is the Perfection of Righteousness in Jesus Christ: A Reformed Perspective," in Wayne G. Strickland, ed., The Law, the Gospel, and the Modern Christian: Five Views (Grand Rapids: Zondervan, 1993), pp. 29-30.5) May We Use the Term Theonomy...?" in William S. Barker and W. Robert Godfrey, eds., Theonomy: A Reformed Critique (Grand Rapids: Zondervan, 1990), p. 35.6) Tremper Longman III, Making Sense of the Old Testament: Three Crucial Questions (Grand Rapids: Baker, 1998), p. 110.
7) When we asked about the validity of the Ten Commandments, his reply was, “since the [ten] commandments, both old and new, are base on the character of God, which does not change, they are still relevant”.