when Esau was 40 years old, he married two Hittite women, Judith and Basemath, causing bitterness for Isaac and Rebekah.
when Isaac was old and his sight had dimmed, he called Esau and asked him to hunt some game and prepare a dish, so that Isaac might give him his innermost blessing before he died. Rebekah had been listening, and when Esau departed, she instructed Jacob to fetch her two choice kids so that she might prepare a dish that Jacob could take to Isaac and receive his blessing. Jacob complained to Rebekah that since Esau was hairy, Isaac might touch him, discover him to be a trickster, and curse him. But Rebekah called the curse upon herself, insisting that Jacob do as she directed. So Jacob got the kids, and Rebekah prepared a dish, had Jacob put on Esau's best clothes, and covered Jacob's hands and neck with the kid's skins. When Jacob went to Isaac, he asked which of his sons had arrived, and Jacob said that he was Esau and asked for Isaac's blessing. Isaac asked him how he had succeeded so quickly, and he said that God had granted him good fortune. Isaac asked Jacob to come closer that Isaac might feel him to determine whether he was really Esau. Isaac felt him and wondered that the voice was Jacob's, but the hands were Esau's. Isaac questioned if it was really Esau, and when Jacob assured him, Isaac asked for the game and Jacob served him the kids and wine. Isaac bade his son to come close and kiss him, and Isaac smelled his clothes, remarking that he smelled like the fields.
Isaac blessed Jacob, asking God to give him abundance, make peoples serve him, make him master over his brothers, curse those who cursed him, and bless those who blessed him. Just as Jacob left, Esau returned from the hunt, prepared a dish for Isaac, and asked Isaac for his blessing. Isaac asked who he was, and Esau said that it was he. Isaac trembled and asked who it was then who had served him, received his blessing, and now must remain blessed. Esau burst into sobbing, and asked Isaac to bless him too, but Isaac answered that Jacob had taken Esau's blessing with guile. Esau asked whether Jacob had been so named that he might supplant Esau twice, first taking his birthright and now his blessing. Esau asked Isaac whether he had not reserved a blessing for Esau, but Isaac answered that he had made Jacob master over him and sustained him with grain and wine, and asked what, then, he could still do for Esau. Esau wept and pressed Isaac to bless him, too, so Isaac blessed him to enjoy the fat of the earth and the dew of heaven, to live by his sword and to serve his brother, but also to break his yoke. Esau harbored a grudge against Jacob, and told himself that he would kill Jacob upon Isaac's death. When Esau's words reached Rebekah, she told Jacob to flee to Haran and her brother Laban and remain there until Esau's fury subsided and Rebekah fetched him from there, so that Rebekah would not lose both sons in one day.