What does Genesis 27:32 mean?
Jacob has just successfully scammed his father, by impersonating Esau, his older brother (Genesis 27:19–30). The purpose of this was to obtain the family blessing which Isaac meant to give Esau (Genesis 27:2–5). The plot went so far as to use Esau's clothes (Genesis 27:15), goat skins (Genesis 27:16), and food meant to mimic Isaac's favorite meal (Genesis 27:17). The basis for this entire incident is the fact that Isaac is old and blind (Genesis 27:1).When Esau returns, having done exactly as Isaac asked him, he is met with a rude awakening. Isaac, old and blind, does not recognize Esau, just as he did not recognize Jacob dressed as Esau (Genesis 27:18). The old man is forced to ask, once again, who is standing before him. He gets the same answer: I am your firstborn son Esau.
Suddenly, the deception is revealed. The suspicions Isaac had when Jacob was there are confirmed, and he realizes that he's been played for a fool. He reacts forcefully, as one would expect.