ויזכור אלקים את רחל וישמע אליה אלקים ויפתח את רחמה
Hashem remembered the extraordinary empathy that Rachel Imeinu manifested for her sister’s plight. Lest she be discovered as Leah, Rachel gave her the predesignated signs that Yaakov Avinu (sensing that Lavan would pull off such a stunt) had originally given to her. Rashi explains that now that she was aware that she was barren, Rachel feared that Yaakov would divorce her, and she would be compelled to marry Eisav. (This is based upon the commentary that quoted people as saying that Lavan had two daughters, and his sister Rivkah Imeinu had two sons; the older son (Eisav) would marry the…