23. Jesus appears to have taken pains to perform cures on the Sabbath, in order to have occasion to protest against the rigorous observance of the Pharisees of this day. He wished to show them that true piety consisted, not in the observance of forms and of outside things, but in the true worship of the heart. He justifies himself by saying: “My Father is always at his work to this very day, and I, too, am working,” that is to say, that God does not suspend the workings of nature on the Sabbath. He continues to produce that which is necessary to your nourishment and health; and I am here to do his will.