Dr. Sims has a B.A. in History from Erskine College, a M.Div. from Reformed Theological Seminary in Charlotte, a D.Min. from Erskine Theological Seminary, and is currently working on a Th.M. from Erskine Theological Seminary. Ordained as a minister in the Associate Reformed Presbyterian Church since 1999, he has served as Pastor of First ARP Church in Lancaster, SC, for nearly 18 years and as Chaplain of the Lancaster City Fire Department since 2006. Dr. Sims served as Vice-Moderator of the ARP General Synod in 2018–2019 and is now the Principal Clerk for the denomination.