Benjigirl...I took all day today to think about your question. I am very thankful that all of my kids are believers. I think it is purely by the grace of God. We don't force religion on our kids at all. We go to church ever Sunday no questions asked. We are a normal family with issues but they know without a doubt where we stand. I talk honestly about everything and they know if I am struggling or doubting. I am very laid back so I don't ever believe in " forcing" then to do anything. So far they haven't rebelled. Again, grace of God.
I am not sure that really helps. I think the most important thing is to not force it. They rebel against any of that. Live it and love them. Then pray pray pray!