Jellei, you are confused a bit. Most likely "is going" is a better translation, but "goes" should be accepted as well. How would you translate " Każdego dnia ksiądz IDZIE do pracy i wykonuje swoją pracę"? May be - "Every day the priest GOES to work and does his work" - would you argue? So "The priest goes to church" should be a valid translation.
But this sentence doesn't have anything about 'every day' or anything like that. I wouldn't argue about that sentence you gave, but this one doesn't have that additional context.
Generally, Verbs of Motion have numerous nuances and if we take into account every possible interpretation, then we won't be able to teach anything.
How would you say in Polish a "rectory", a priest's usual dwelling place?
FYI A Priest lives in a Presbytery (Catholic) whereas a Vicar ot maybe Pastor lives in a Rectory (Church of Ireland/England. (Jestem diakoniem w Irlandii.)
What would be for a pastor/minister/reverend etc? Not all Christians are Catholic.
"pastor" is Protestant? It seems it's just "pastor". "minister" also seems to be "minister", although I don't recall ever hearing that in my life. "reverend" seems to be translated as an adjective: "wielebny" or "czcigodny", which are both adjectives denoting utmost respect.