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.

Heidelberg 103: The Christian Sabbath (1)

If there was a time when the church needed to stop its business, to rest, to worship, and to set aside time for the care of the poor in their midst, that time is now. At no time in its history has . . . Continue reading →

Heidelberg 96–98: Worshiping The True God Truly (2)

The regulative principle of worship, however, does distinguish confession Reformed and Presbyterian churches from the broad evangelical traditions, many of whom are descended from the Pietists and the Anabaptists. The confessional Lutheran churches, the Anglican church, and the Romanists all operate on the normative principle. That principle works for many things in daily life. May one cross this street? Yes, certainly. It is not forbidden. The regulative principle, however, does not work for daily life. “Must I cross this street?” It was never intended to applied to daily life, outside of public worship. In the same way, the normative principle does not work for public worship. Continue reading →

The Shepherd Of Hermas Is A Dull Novel

Dr. Bunsen calls it “a good but dull novel,” and reminds us of a saying of Niebuhr (Bunsen’s master), that “he pitied the Athenian3 Christians for being obliged to hear it read in their assemblies.” —F. Crombie, “Introductory Note to the Pastor . . . Continue reading →

Heidelberg 96–98: Worshiping The True God Truly (1)

Few topics are more incendiary in the church than that of public worship. Yet no topic is more important to the Christian faith and life than public worship. This is a recipe for a crisis, which is where we find ourselves. Feelings . . . Continue reading →

Bloom Was More Right Than He Knew

In 1987, who could have envisioned the two-year nadir of 2009‒10, when not only the Democrats, but indeed, the very caricatured and politically correct academia of Bloom’s nightmares, would come to control the entire government of the United States: both houses of . . . Continue reading →

The Coin In The Coffer

I just renewed the contract with the web hosting company. This reminds me of three things: 1) Thank you to those of you who support the HB faithfully. I realize that it’s been a while since I’ve produced an episode of the Heidelcast. . . . Continue reading →

Heidelberg 94 and 95: What Does God Require In The First Commandment?

On one level it’s easy to tell the difference between idols and the God who is. We did not fabricate him and we cannot change or kill him. He just is (Gen 1:1; Exodus 3:14). Idols, on the other hand, are not necessarily. An idol might exist or it might not exist. Its existence, as such, is contingent upon the will of its human creator. Of course, we confess with the Apostle Paul that “an idol has no real existence” (1 Cor 8:4). Whether we fabricate them with our hands, in our minds, or in our hearts, idols change. They come and go. When they disappoint us, we chuck them and make another hoping for a better outcome. Continue reading →

Heidelberg 93: How Is The Decalogue Organized?

In Exodus 34:27 Scripture says that Yahweh spoke directly to Moses to say, “Write these words, for in accordance with these words I have made a covenant with you and with Israel” (ESV). Thus, whatever follows was an essential part of the . . . Continue reading →

Heidelberg 92: What Is The Law Of God? (3)

There is a way of life, i.e., there is a way that believers live. There is a way of salvation, a path that believers walk toward eternal life, in the grace of Christ, in union with Christ. It is essential to distinguish, however, between is and through or because. The moralist wants to turn is into through or because. We are not saved through obedience. That is Romanism. We are not saved because of our obedience. That is sheer Pelagianism. Nevertheless, it is the case that those to whom God has sovereignly given new life, to whom he has given the grace of faith and through it union with Christ, will and shall seek to live, sola gratia, sola fide according to God’s moral law. Continue reading →

Heidelberg 92: What Is The Law Of God? (2)

The law was a covenant of works, not a covenant of grace. The “commandment of life” was “the day you eat thereof you shall surely die” (Gen 2:17). It was a commandment of life because, if Adam kept the commandment he would have entered into eternal life (see also Heidelberg 6, 9; Rev 22:14). The condition of the covenant was, to use the words of Christ, “do this and live” (Luke 10:28). His status before God was conditioned upon his obedience to God’s holy law. Continue reading →

What Foetal Tissue Really Is

“We’ve been very good at getting heart, lung, liver, because we know that, so I’m not going to crush that part, I’m going to basically crush below, I’m going to crush above, and I’m going to see if I can get it . . . Continue reading →

Heidelberg 92: What Is The Law Of God?

God’s Word teaches us to have the highest, most reverent view of God’s law generally. The Psalmist declares “Oh how I love your law! It is my meditation all the day” (v. 97; ESV). To be sure, in Psalm 119 the noun . . . Continue reading →