The following is an excerpt from the introduction to Theology of the Cross: Reflections on Luther’s Heidelberg Disputation written by Steve Paulson and edited by Kelsi Klembara and Caleb Keith (1517 Publishing, 2018).
For all its stewing, regret ironically does not truly focus on the past. Often it is more concerned with the present and the future and how they would be if only we had done something differently.