Pastor is, of course, Biblical as you note.
I don’t recall if I have ever referred to someone as “Reverend.”
I tend to avoid lofty pontifical titles like the plague.
So, ever call anybody Mister? ( = master)? Sir (= Lord)? Doctor (= teacher). I hope you’ve never had cause to call somebody “Your Honor”, but if you did, you knew that it was about his gig not about him (or her) personally.