In the Torah, Nimrod and Esau are hunters, Isaac enjoys game, and the legal collections take it for granted that hunting for food is common and permissible. Once Judaism decided that even wild animals must be ritually slaughtered, the Jewish attitude towards hunting took a sharp negative turn.
Marcus Mordecai Schwartz
Why does Esau in Jewish tradition come to be known as עשו הרשע “Esau the Wicked”? The answer has to do with the history of Judea’s relationship with Esau’s eponymous descendants, the Edomites, and the connection Jews made between them, Rome, and Christianity. The negative view of Esau is expressed nowhere more forcefully than in Rashi’s commentary.
Barry Dov Walfish