I was a bit surprised to find this at the public library. It very firmly and absolutely states that the Sabbath day is reserved for God and Church attendance is mandatory. Oddly, it doesn't then go on to suggest that children will actually get anything out of religious services; the kids all (realistically) fidget and pay no attention. This book is like a parent who answers questions with Because That's the Way It Is or Because I Say So and I'm Your Father. No rationale.
However, I did quite like the illustrations.