John Calvin on Genesis 27:36

36. Is he not rightly named Jacob? That the mind of Esau was affected with no sense of penitence appears hence; he accused his brother and took no blame to himself. But the very beginning of repentance is grief felt on account of sin, together with self-condemnation. Esau ought to have descended into himself, and to have become his own judge. Having sold his birthright, he had darted, like a famished dog, upon the meat and the pottage; and now, as if he had done no wrong, he vents all his anger on his brother. Further, if the blessing is deemed of any value, why does he not consider that he had been repelled from it, not simply by the fraud of man, but by the providence of God? We see, therefore, that like a blind man feeling in the dark, he cannot find his way.