'Esav hated his brother because of the blessing his father had given him. 'Esav said to himself, "The time for mourning my father will soon come, and then I will kill my brother Ya'akov."
But the words of 'Esav her older son were told to Rivkah. She sent for Ya'akov her younger son and said to him, "Here, your brother 'Esav is comforting himself over you by planning to kill you.
Therefore, my son, listen to me: get up and escape to Lavan my brother in Haran.
Stay with him a little while, until your brother's anger subsides.
Your brother's anger will turn away from you, and he will forget what you did to him. Then I'll send and bring you back from there. Why should I lose both of you on the same day?"
Rivkah said to Yitz'chak, "I'm sick to death of Hitti women! If Ya'akov marries one of the Hitti women, like those who live here, my life won't be worth living."