Rabbi Tanchuma said: The two lads grew up; the one went by the way of life, and the other went by the way of death, as it is said, "And the boys grew, and Esau was a cunning hunter" (Gen. 25:27). Jacob went on the way of life, for he was dwelling in tents, and he studied the Torah all his days. Esau went on the way of death, because he slew Nimrod and his son Chavir, and he almost sought to kill Jacob his brother, as it is said, "The days of mourning for my father are at hand, and I will slay my brother Jacob" (Gen. 27:41).