ויעתר יצחק לד' לנכח אשתו כי עקרה היא ויעתר לו ד' ותהר רבקה אשתו
Hashem allowed Himself to be entreated by him – by Yitzchak Avinu. Lavan had given Rivkah Imeinu a blessing, Achoseinu, at hayi l’alfei revavah, “Our sister, may you come to be the thousands of myriads” (Bereishis 24:60). It seems like a “reasonable” blessing. The fact that Hashem allowed Himself to be entreated by Yitzchak is a clear indication that Lavan’s blessing was unacceptable. Why? A blessing is a blessing – regardless of its source – or is this not true? The Melitzer Rebbe, Shlita, contends that a bircas rasha einah ela kelalah, “The blessing bestowed by a wicked person is…