About R. Scott Clark

R. Scott Clark is the President of the Heidelberg Reformation Association, the author and editor of, and contributor to several books and the author of many articles. He has taught church history and historical theology since 1997 at Westminster Seminary California. He has also taught at Wheaton College, Reformed Theological Seminary, and Concordia University. Read more» He has hosted the Heidelblog since 2007.

Paul Contra Final Salvation Through Works (Romans 5:9–10)

For many evangelicals and for some ostensibly Reformed folk it has been fashionable for the last several years to teach that we are justified now by grace alone (sola gratia), through faith alone (sola fide), based on Christ’s righteousness imputed, but that . . . Continue reading →

A Sunday Evening Bible Study Is Good But A Second Worship Service Is Better

Romans 10 On The Centrality Of The Official Preaching Of The Gospel

When I first began to become Reformed (c. 1980) I was familiar with the second service because my Southern Baptist congregation had an evening service. Indeed, we had a Wednesday evening service in addition to the Sunday morning service. Oddly, much to . . . Continue reading →

The Catechism Was Meant To Be Heard More Than Read

This year on the Heidelcast the HRA has been releasing an audio version of one question and answer of the Heidelberg Catechism daily 6 days a week. The first reason that we are doing this is to get the catechism into peoples ears, heads, and . . . Continue reading →

Against Berenson: Why Abortion Should Not Be Legal

The classic Reformed theologians distinguished between three uses of the moral law (e.g., the Ten Commandments): 1) the pedagogical use, whereby sinners come to know the greatness of their sin and misery; 2) the civil use, whereby the moral law—traditionally both tables . . . Continue reading →

New Resource Page: On Mainline (Liberal) Christianity In North America

The expression “mainline church” is drawn from an old-money neighborhood in Philadelphia known as “the main line.” The mainline churches were what are sometimes called the “tall steeple” church along the mainline. Scholars of American Christianity sometimes speak of the “Seven Sisters . . . Continue reading →

Supreme Court 9–0: Boston May Not Discriminate Against Christian Group

The SCOTUS unanimously ruled today, in Shurtleff v. City of Boston, that the City of Boston’s decision to exclude the “Camp Constitution” organization from a public flagpole, available to other groups, violated the Constitution of the United States. As Justice Kavanaugh explained, “This . . . Continue reading →

Should The Visible Church, As An Institution, Form And Express An Opinion On Political Violence?

s noted here previously, the mainline (liberal) PCUSA has adopted more than 120 positions on a bewildering variety of issues. The temptation to use the visible church to achieve one’s desired social goals is almost irresistible. Continue reading →

Trueman: It Is A Strange New World

Carl Trueman made a big splash by speaking uncomfortable truths to seemingly intractable power in The Rise and Triumph of the Modern Self (Wheaton: Crossway, 2020). In Strange New World: How Thinkers and Activists Redefined Identity and Sparked the Sexual Revolution (Wheaton: Crossway, 2022), . . . Continue reading →

Coming In December, 2022: Beza, Polanus, And Turretin On Justification

 From its inception, the goal of the Classic Reformed Theology Series from Reformation Heritage Books (sponsor of the Heidelcast) has been to present, in English, primary source texts in Reformed theology. This new volume is the sixth in the series, which began . . . Continue reading →

Believer, You Are A Romans 7:25 Christian

Against The Presumption Of Perfectionism

Thanks be to God through Jesus Christ our Lord. Therefore, consequently, on the one hand, I myself serve the law of God with my mind but, on the other, with the flesh I serve the law of sin.”—The Christian Testimony of the Apostle Paul. Continue reading →

Rescuing Complementarianism

Those who study these things (e.g., historians, sociologists) write of three “waves” of feminism. First-wave feminism accounts for the women’s suffrage movement in the late 19th and early 20th centuries. Second-wave feminism is associated with the legalization of birth control (Griswold v . . . Continue reading →