Kommentar zu Tehillim 109:14

the iniquity against his forefathers The iniquity that he sinned against his forebears, to Abraham, whose life he shortened by five years, and to his father he caused blindness.

and the sin against his mother that he destroyed her womb, and that he caused the day of her burial to be concealed from the people, lest they curse her for Esau emerged from her womb, as it is said (Gen. 35:8): “Deborah, Rebecca’s nurse, died...the Plain of Weeping.” In Greek, another is called “allon,” for Jacob had another mourning along with that of Deborah, for his mother died and they concealed her death.