Jewish law required Jews to be holy which required keeping separate from Gentiles, so could they expect that their neighbor would be only fellow Jews. Jesus dramatically expands this definition through the Parable of the Good Samaritan. The Samaritans were half-Jewish and, therefore, despised by devout Jews. In the parable the Samaritan behaves like God behaves and also lives as a true human being, which is the image of God, since we are all created in the image of God.