If you read what somebody says about a song on their blog but never actually listen to the song, you're missing the heart of the matter. That same dynamic is at work in Sunday's Gospel, which has two groups (Sadducees and Pharisees) questioning Jesus, asking “which commandment in the law is the greatest?” It turns out this was actually something these groups debated.
The Sadducees (in charge of Temple worship) viewed the order of the Ten Commandments ("You shall have no other gods before me" comes first) as God's answer to the question.
The Pharisees (scholars of the law) asked how you could do anything about the law or God if you didn’t know there was a God - so knowing that there was a God was first on their list (yes, they had made a list of all 613 laws and numbered them in order of importance).
Both groups were talking about the law, and both groups were missing the law itself and (more importantly) what's behind the law.
Jesus' answer looks past the debate, and goes right to the heart of the matter. More on this tomorrow.