Jacob was righteous, Esau, wicked. Rashi, the most influential medieval commentator, describes how their distinct natures became evident as soon as they matured (Rashi on Genesis 25:27).

We notice in the Bible that Esau, when he was hungry, asked his brother for food Upon eating it, the Bible shows a significant change that happened in his life. Genesis 25:33-34 says, "Jacob said ...

Jacob then gave Esau bread and lentil stew; he ate and drank and got up and left. Thus, Esau spurned the birthright.” (Genesis 25:33-34) This was certainly the first black Friday special!