Jacob, Isaac’s son, is one of the Bible’s greatest examples of how much a human being can change through the process of conversion. A pattern of sin and deception early in Jacob’s adulthood eventually disappeared as this great servant became something barely recognizable to those who had known him before his change. Turning from polygamy is part of this story.
The name Jacob means “supplanter.” Jacob did, in fact, supplant his brother Esau by unlawfully obtaining the birthright designated to the eldest brother through deception of their father—Isaac, then blind.