יַ֗עַן אֲשֶׁ֤ר ׀ לֹ֥א זָכַר֮ עֲשׂ֪וֹת חָ֥סֶד וַיִּרְדֹּ֡ף אִישׁ־עָנִ֣י וְ֭אֶבְיוֹן וְנִכְאֵ֨ה לֵבָ֬ב לְמוֹתֵֽת׃
Rashi on Psalms
Because he did not remember to do kindness to engage in the mourning of his father, as Jacob had made a pottage of lentils to console Isaac, for on that day Abraham had died.