As far as I understand, this is their name, which is considered God's help, plus it is easier to remember this detail based on religion. I've talked a lot about this with firstchurchlove.com, and they've told me it's not that basic. It already depends on everyone how they want to name the priest, and the main thing is to feel comfortable in the church. That's how they taught me, and I'm delighted with that. I don't know how you are and what it's like for you, but that would be the most normal thing.