How does Jesus show His authority over the law?

In Mark 12:29-31, Jesus succinctly summarizes the law by stating that the greatest commandment is to love God wholeheartedly and love one's neighbor as oneself. This reframing highlights Christ's authority in interpreting the law's purpose, shifting the focus from mere legalistic obedience to heartfelt devotion and love. By establishing these commandments as the foundation of the law and linking them to a relationship with God, He showcases His divine right to clarify and fulfill the law, thus revealing His role as the ultimate Lawgiver.