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.

Knox On The Regulative Principle

All worshipping, honoring or service invented by the brain of man in the religion of God, without his own express commandment, is idolatry. The mass is invented by the brain of man without any commandment of God: Therefore it is idolatry. —John . . . Continue reading →

Strangers And Aliens (4): Living As Resident Aliens (1 Peter 1:13–21)

Peter wrote this epistle to be circulated among Christian congregations in Asia Minor (modern day Turkey). He wrote to them about their faith, their hope, and their life living in this world—God’s world—as those who have been delivered out of Egypt, as . . . Continue reading →

Tyndale On The Gospel

Evangelion (that we call the gospel) is a Greek word; and signifieth good, merry, glad and joyful tidings, that maketh a man’s heart glad, and maketh him sing, dance, and leap for joy: as when David had killed Goliah the giant, came . . . Continue reading →

Fall Conference Season 2015: Identity, Eschatology, And Authority

It is the fall conference season. Here are three gatherings about which you might want to to know. One confronts the problem of identity: do we define ourselves the way the culture would have us do it or is there a better way? The second gathers a stellar group of Reformed teachers to help us through “end times” and the third focuses on the Biblical and Reformation doctrine of “Scripture alone.” Continue reading →

What The Heidelberg Liturgy Teaches Us About Grace, Faith, And Sanctification

The medievals had a saying: the law of praying is the law of believing (lex orandi, lex credendi). By it they meant to say that what we do in worship affects our theology. If you want to change theology of the future change . . . Continue reading →

On This Date: Tyndale Martyred For The Gospel

William Tyndale (c.1494–1536) was one of the most important figures in the English Reformation. He not only helped to transmit to the English-speaking world Luther’s rediscovery of the gospel of free acceptance with God for the sake of the imputed righteousness of . . . Continue reading →