Rabbi Avon stated: Just as we began with four kings, we will conclude with Four Kingdoms: The Babylonians, the Persians, the Greeks, and the Edomites...
(36) [Esau] said, “Was he, then, named Jacob that he might supplant me these two times? First he took away my birthright and now he has taken away my blessing!” And he added, “Have you not reserved a blessing for me?” (37) Isaac answered, saying to Esau, “But I have made him master over you: I have given him all his brothers for servants, and sustained him with grain and wine. What, then, can I still do for you, my son?” (38) And Esau said to his father, “Have you but one blessing, Father? Bless me too, Father!” And Esau wept aloud. (39) And his father Isaac answered, saying to him, “See, your abode shall enjoy the fat of the earth And the dew of heaven above. (40) Yet by your sword you shall live, And you shall serve your brother; But when you grow restive, You shall break his yoke from your neck.” (41) Now Esau harbored a grudge against Jacob because of the blessing which his father had given him, and Esau said to himself, “Let but the mourning period of my father come, and I will kill my brother Jacob.”
AND HE KISSED HIM — Dots are placed above the letters of this word, and a difference of opinion is expressed in the Baraitha of Sifré as to what these dots are intended to suggest: some explain the dotting as meaning that he did not kiss him with his whole heart, whereas R Simeon the son of Johai said: It is a well-known statute that Esau hates Jacob, but at that moment his pity was really aroused and he kissed him with his whole heart. (Sifrei Bamidbar 69.2)
(28) Isaac favored Esau because "trapping was in his mouth"; but Rebekah favored Jacob.