An Atheist here who enjoys this movie..
and the Christian message behind it. If you feel the need to love God/Jesus to make your marriage better and those around you happy, then so be it. It doesn't matter the methods that are used, it's the end result that matters.. Caleb became less selfish and realized he was a bad husband and found a way to change, and there's one less divorce on file in the world. That's what matters most.
Jesus would support Universal Health Care