God promised Abraham a son and would later promise Sarah that she would conceive and bear a son to Abraham, and the son would be called Isaac. Sarah, because she was barren during what we would consider normal childbearing age, gave up on God's promise, did it her way and gave her maidservant Hagar to Abraham, thinking she was fulfilling God's promise. The son that was born would be called Ishmael. You see, Sarah gave up on God's promise. That...