I always wondered where this idea came from. It's not strictly Biblical, it's not strictly literal either. It's a strange place where Christians say something completely different from what they do. "Will YOU bless the food" Someone is asked. If they do, they include something like "GOD bless the food" If you ask them why that is done they say "to THANK God for the food", which some of the looser Bible translations say is what Jesus did, If you are more strict you see that Jesus blessed GOD for the food, as is still done in many Jewish traditions to this day. What? How, why? How did this whole thing come to pass? Why do we accept that this is the right way when it's not even grammatically correct between ourselves? Why do those who can see that it is not grammatically correct continue to do it that way?