At the end of the previous aliyah we had Yakov posing as Esav to get Yitzchak's blessing, and the plan is successful. In this, the sixth aliyah, is the blessing Yakov receives. The blessing begins with the words of the blessing "v'yiten lecho" that we say to each other on Motzei Shabbos on page 235 of the siddur Tehillat Hashem. No sooner does the blessing end, when Yakov goes out and Esav comes in. Esav announces to his father that he is back with the food and came to collect his blessing. Yitzchak wonders out loud "who was that that I just blessed?" Esav gets very angry, and Rivkah and Yitzchak send Yakov away for what they believe will be a "few days", for his safety.