Doesn’t sound like your child is struggling at all with what she believes. As hard as it may seem your grandchildren are not your responsibility as far as development is concerned.

A grandparent role is more to be supportive than to undermine the parents. Would you have wanted your mother to interfere with the upbringing of your daughter?

Your personal preferences are irrelevant with regard to your daughter’s children. Help them through the difficult times of childhood because there will be far more relevant challenges to deal with than an irrelevant religious choice.

The simple truth is that it's none of your damn business how they raise their kids. I have a similar situation but once she got married - my job was done unless I detected clear signs of abuse which taking them to church doesn't qualify. Leave them alone - let them find their own paths - it's not about you anymore - not that it ever was. We don't raise children to be our clones. My love for my daughter, son-in-law and grand babies doesn't end at the church doors.

Let them decide it by themselves when they grow up

Because of Masonic lodge secret religion racist devil worshippers, I was seperated from my son for several years, but long story short; When we got back together he told me he was Atheist. I had to have some come to logic duscussions with him and I think he has moved to a more so logical agnostic view. I explained to him about creating Taco God, sometime he seems to really not know if anyone has ever eaten a taco or not. I was some what hopeful when he commented on creating a Pizza God, but I don't know if he did for sure or not. About the only thing he seems to have interest in is smoking dope, playing video games and contemplating electrons and protons going in circles. He has or shows no interest in doing anything to promote and bring about free education for everyone on Earth to allow for everyone to enjoy the fullness of intellectual capabilities of knowledge, understanding, wisdom, skills, crafts, trades and college certifications of every kind free from tuition, free from loans and free from any fees and kill anyone in true justice that opposes it.

I still try to be hopefully optimistic.

I have found that churches and religions prey on the vulnerable non-believers or undecided people... so people overcoming addiction(s), people leaving abusive relationships/families, people in jail, people with 1 or more mental disorder(s).... I wonder if your daughter is vulnerable, for whatever reason(s) and her church going friends were able to manipulate her.

I infrequently look at this site, but i live in Perrysburg ,Ohio Larry

You need to take harsh actions. Figure it out! What would you do if someone was physically raping your grandchildren and you had a loaded weapon in your hands? Mental rape is not better!

Raised by their militant Atheist Dad, from birth ..no… The same battles confront them, though. But having experienced, and been prepared for them ..they’re holding their own.

Choosing mates not mired in religion is the first step, or make that the second ..like-mined friends having been the first.. Many-to-most viewed my battle with religion not worth the effort. As is, it was.