I have used the phrase "Thank you for your invitation, but I am content with my spiritual path" Used it on the door-to-door folks a couple times.
A completely nosey question that you can ignore if you would like.
You mentioned that your parents were fairly open about different religions/spiritual paths. Would it be something that you would let your daughter go to? Perhaps not to this brand but to any other church that may be closer to what your views are? Granted some brands of church -which these two sound like - don't always feel like the same brand, but different color are as right.
Kitten has been to church once with my coleader's daughter. She spent the night and since they were going to church, she went with them. I have no problem with this as it is how I was exposed to many different religions growing up.
I will NOT, however, allow this to become a weekly thing as I don't feel it's healthy. Kitten and I discuss religion. I want her to grow up open minded and I fear her attending this specific church would narrow her mind. Just an example that boiled my blood...one of my moms related to me a conversation she had with her 8 year old about her terminally ill Grandmother.
Girl: mommy, will Grandma go to heaven when she dies?
Mom: well baby, no, not unless she repents and accepts *Deity* as her savior. She hasn't, so we need to pray for her.
Girl: I will pray for her and talk to her about *Deity*. I will tell her that I love her and don't want her to go to ****.
Mom: I think that's a wonderful idea. Maybe she will be brought to *Deity* if she hears it from your sweet lips. You are my little angel.
Nothing like using your child to guilt and manipulate your Mom who is dying of cancer. I kept my lips tightly shut on that one and changed the subject. Luckily bean dip works on her.