Does a teacher have to believe in religion?

Does a teacher that teaches religion have to believe in their religion to teach? e.g If there’s a subject at school that’s about religion and the teacher teaches the kids about our religion but the teacher self isn’t a believer, the teacher is a non-religious person. For me, I don’t think that it matters as long as they just teach the subject to the kids.

What’s your point of view on this?
Yes/No, why?