“One who exonerates the wicked and one who condemns the righteous, both of them are an abomination to the Lord” (Proverbs 17:15) – Rabbi Yehoshua ben Levi said: It was not because Rebecca loved Jacob more than Esau that she performed this action, but she said: ‘Let him [Esau] not enter and mislead that elder [Isaac],’ based on: “Both of them are an abomination to the Lord.” Because he exonerated the wicked, his eyes dimmed – “it was when Isaac was old, and his eyes dimmed.”
Rabbi Yitzḥak began: “You shall not take a bribe [for bribes blind the clear-sighted…]” (Exodus 23:8) – Rabbi Yitzḥak said: If one who took a bribe from one who owed him,7Esau owed Isaac due to the mitzva of honoring one’s father. his eyes dimmed, one who takes a bribe from one who does not owe him, all the more so – “it was when Isaac was old.”