The Heidelberg Disputation was held at the lecture hall of the Augustinian order on April 26, 1518.^[1] It was here that Martin Luther, as a delegate for his order, began to have occasion to articulate his views. In the defense of his theses, which culminated in a contrast between divine love and human love,^[2] Luther defended the doctrine of human depravity and the bondage of the will. Martin Bucer, the reformer of Strasbourg, heard Luther here and became an avid follower.^[3] This disputation also led to Johann Eck's challenging Martin Luther to the Leipzig Debate.^[4]

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The Heidelberg 28 theses were the basis of the disputation and represented a significant evolution from the 95 theses of the previous year from a simple dispute about the theology behind indulgences to a fuller, Augustinian theology of sovereign grace.^[5]

• Martin Bucer
• Erhard Schnepf
• Johannes Brenz

• Theology of the Cross