ויעתר יצחק לד' לנכח אשתו... ויעתר לו ד'
The implication of the masculine singular form is that Hashem responded to Yitzchak’s prayer – rather than to Rivkah’s. Chazal (Yevamos 64a) teach that one cannot compare the prayer offered by a tzaddik ben tzaddik, righteous person, the son of a righteous person, (Yitzchak Avinu) to the prayer entreated by a tzaddik ben rasha (Rivkah Imeinu). Thus, Hashem listened to Yitzchak. This concept is most efficacious when each individual supplicant is praying for himself personally. Yitzchak and Rivkah were both praying for the same thing: offspring. Why would Yitzchak’s prayer find greater acceptance than Rivkah’s? Horav Meir Shapiro, zl, explains…
