Should a Pastor Get a PhD? Some online answers
Should Pastors get a PhD? Piper answers if you're prepping and get the right program to study the Bible better it can help, but if you're already a pastor just do serious self-study.
Why a PhD is Needed in the Pulpit | At Southern Seminary Mark Dever gives the best and most balanced answer for pastors, in my view.
Kevin DeYoung answers some questions on him doing a PhD as a pastor.
PhDs in the Pulpit: Should (Future) Pastors Pursue Doctorates? Answered by professors who were at SBTS at the time, Owen Strachan, Stephen Wellum, and Jonathan Pennington.
Why I Decided to do a DMin rather than a PhD as a pastor by P. J. Tibayan
Three Reasons for a Pastor-Theologian to get a PhD blog post by Andy Naselli
Why Should a Pastor Do a PhD? 3 Reasons to Consider by Owen Strachan
Earning a PhD as a Full-Time Pastor | A discussuion on the Center for Pastor-Theologians Podcast