Genesis 33:4, 9 reveals an entirely different aspect to his personality than we normally think: "But Esau ran to meet him, and embraced him, and fell on his neck and kissed him, and they wept. . . . But Esau said, 'I have enough, my brother; keep what you have for yourself.'" This scene pictures a man who is generous and magnanimous even to one who had defrauded him of an extremely valuable possession.
God undoubtedly paved the way for Jacob in this instance, but still Esau's temperament seems to have been forgiving and without resentment even though normally more mercurial than Jacob's. It would quickly flare into anger and then subside just as quickly, so that it was difficult for him to hold a grudge. He seems lovable, impulsive, physically strong, and easygoing, but unfortunately, he was also somewhat of a spiritual airhead, careless, and lacking in strong principle.
John W. Ritenbaugh
Eating: How Good It Is! (Part Two)