Ruth, Hagar, Hannah, Abigail, Eve, Lot's wife, Mary and the Syro-Phoenician woman: what did these women have in common? They were all teachers. They taught us the meaning of commitment and loyalty. They taught us forgiveness and selfless advocacy for others. They instructed us in matters of faith and duty and educated us in the art of perseverance in the face of daunting opposition. They were iconoclasts. They defied customs and conventions in their...