Dr. Rolf Jacobson, Professor of Old Testament at Luther Seminary in St. Paul, Minnesota, and one of the “stars” of the Sermon Brainwave podcast, preaches a sermon on the Ten Commandments from Exodus 20:1-17. “It’s impossible to build a time machine out of plywood,” he says, “and it’s impossible to be saved by keeping the law.” Nonetheless, there are lessons to be learned…