Jewish tradition, going back to our Torah portion, considered lineage and heritage critical in determining marriage relationships. Seeking a wife for Isaac, Abraham instructs his servant Eliezer to go back to Abraham's kinfolk in "the land of my birth." Eliezer, profoundly aware of Abraham's spiritual values based on hesed, loving-kindness, prays to God for a sign of this value in the girls who have come to draw water from the well where he has stopped. Rebecca, who comes from a family related to Abraham's clan, fulfills the servant's criteria of a woman who has heart. It is not that beauty in a woman is discounted. Rebecca, we are told, "was very beautiful." But her beauty was internal as well as external.
The circumstances under which Isaac and Rebecca meet are also instructive. Isaac went out to walk in the field toward evening. As Rashi points out, this was a walking meditation and prayer. Two people, with the proper lineage and heritage, with heart and a spiritual outlook on life, meet. The union had all the ingredients of blessing, and it was blessed. The Torah tells us: "Isaac brought her (Rebecca) into his mother Sarah's tent." Rashi, questioning every superfluous word of Scripture, notes that it would have been enough to say "mother's tent," why "mother Sarah's tent?" Because, says Rashi quoting the Midrash, Rebecca became like Isaac's mother Sarah. Psychologists point out that men unconsciously often choose wives who in one way or another resemble their mother. While Sarah was living, a light burned in the tent from one Sabbath to the next; there was always a blessing in the dough (i.e., the bread and the meals were delicious) and a cloud, representing the divine spirit, was always hanging over the tent. When Sarah died all these disappeared, but when Rebecca came they reappeared.
Rabbi Joseph Schultz