While at the seminary, Diehl found himself in the middle of the Mo. Synod ‘Civil War’, which found it’s focus on the seminary’s faculty and the seminary’s board of control. While at the seminary he chose to go into exile with the ousted faculty and student body which stood up to the board of control’s unsubstantiated claims of false teaching against some faculty members. Having graduated consequently ‘in exile’ Diehl received a call to an associate pastor position late in 1975 in an LCA parish in Bradenton Florida, (a long way from what he then considered ‘the center of the universe’, the mid-west).
Since Labor Day 1977, Diehl has been privileged to be the pastor of Our Savior in Vero Beach. During his years in Vero, the congregation has been through several major building projects, been an intern site for 3 different ‘Vicars’, has called two full-time associate pastors, the most recent being Rev. Shelly Satran, and a full-time music minister, Ryan Hostler.
While in Vero, Diehl has also been able to be involved in ministries on a synod level, having served on the LOMF board, the Florida Bahamas Synod Council, as Dean of the Space Coast Conference and chair of the Reference and Counsel Committee, among other things.
In the Vero Beach community Diehl has served on the Safespace (Spouse Abuse) Board, United Way Committees, Kiwanis, the Sunshine Physical Therapy Center board of directors, and many public school related boards and activities. He is the past president of the Fighting Indians Band Boosters for Vero Beach High School and currently a member of the Sunrise Rotary Club. Diehl has been married to Karen, his high school sweetheart, since June 1971. They are the proud parents of Sara, Andrew, Katie and Anna. Diehl also has a Captain’s License and is an avid light tackle saltwater fisherman.