In today's Gospel reading from Matthew 9, people brought to Jesus a paralytic lying on a stretcher. When Jesus saw their faith, he said to the paralytic, "Courage, child, your sins are forgiven." Since only God can forgive sins, some of the scribes present thought that Jesus had blasphemed. Jesus knew what they're thinking. To show that he has authority on earth to forgive sins, he said to the paralytic, "Rise, pick up your stretcher, and go home." He rose and went home. Here Jesus backed up his words with deeds, showing that he is God indeed.