The greater the authority rebelled against, the greater the punishment. To strike your brother is one thing, but to strike a police officer is another. But consider the consequences of rebelling against the Creator of heaven and earth, the infinitely holy and terribly just God. Every sin we commit is a direct assault on his holiness and absolute supremacy. It is cosmic treason, worthy of eternal damnation. Yet while God requires complete holiness, David—and all of humanity—can only confess his sinfulness. In this Good Friday sermon, Pastor Matt explores David’s petition before God in Psalm 51 to see our need for forgiveness and the costly joy of our salvation.