In this special episode, guest host Tim Grundmeier interviews historian and author Benjamin T. Phelps about his recent Wisconsin Lutheran Quarterly article on Dr. Henry A. Koch—a pastor, professor, and editor who left a profound mark on confessional Lutheranism in both Germany and America. Phelps shares personal insights drawn from years of research, including access to Koch’s letters, diary, and unpublished materials preserved by his family. Together, they trace Koch’s theological formation in Wauwatosa, his academic work in Leipzig, his resistance to Nazi ideology, and his return to America without a call during the Great Depression. The conversation explores Koch’s role in rebuilding fractured congregations, his deep concern for doctrinal faithfulness, and his controversial but principled opposition to the Missouri Synod’s growing unionism. Through it all, Koch remained committed to the Lutheran confession and the gospel ministry—living out the motto he printed for decades in the Gemeinde-Blatt: Halte, was du hast—Hold fast what you have.

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• About the Host
  • Benjamin Phelps is a 2014 graduate from Martin Luther College with a Bachelor of Arts with a German emphasis. From there went on to graduate from Wisconsin Lutheran Seminary in 2018. Ben has been a regular writer and presenter on various Lutheran history topics. His 2018 thesis on Wyneken won the John Harrison Ness award and the Abdel Ross Wentz prize. He is also the recipient of several awards from the Concordia Historical Institute.
    Ben is currently a doctoral student in historical theology through Concordia Seminary's reduced residency program in St. Louis.