The Isaiah text is a sobering indictment of the emptiness of religious activities if justice is not observed. The call to right behavior comes in verses 16 and 17. “Wash yourselves; make yourselves clean; remove the evil of your doings from before my eyes; cease to do evil, learn to do good; seek justice, correct oppression; defend the fatherless, plead for the widow.” And what is right behavior, right religion, if not taking care of the orphan, the widow, the oppressed?