"All the Law and the Prophets
hang on these two commandments."
Christians are not entirely free from the restraints of “The Law.” In fact, they are under the most demanding of all laws, "The Law of Love."
When Jesus quotes the greatest commandment in the Law of Moses, (read: Matthew 22:34-40) He combines two separate commands (Deuteronomy 6:5 & Leviticus 19:18). Love is the greatest commandment, and its elements are twofold: love of God (first) and love of neighbor (second). When we love God first, the love of others becomes a natural extension.
The question was a popular one. Jesus’ answer is a challenging one. To be a true disciple is to love God with everything we have, and to love the people of the world whom God made in his own image with God's kind of love. All the Law and the Prophets hang on these two commandments.