Rut and Orpah: genetic perspectives on their differing behaviors and ensuing destinies

(14) They broke into weeping again, and Orpah kissed her mother-in-law farewell. But Ruth clung to her.

It is because of the acts of their forebears, as it is written: “And Orpah kissed her mother-in-law, and Ruth cleaved to her” (Ruth 1:14). Rabbi Yitzḥak says: The Holy One, Blessed be He, said: The children of the one who kissed, referring to the four giants descended from Orpah, will come and fall into the hand of the children of the one who cleaved, referring to David, who was descended from Ruth.

(16) But Ruth replied, “Do not urge me to leave you, to turn back and not follow you. For wherever you go, I will go; wherever you lodge, I will lodge; your people shall be my people, and your God my God. (17) Where you die, I will die, and there I will be buried. Thus and more may the LORD do to me if anything but death parts me from you.”

(17) She gleaned in the field until evening. Then she beat out what she had gleaned—it was about an ’ephah of barley— (18) and carried it back with her to the town. When her mother-in-law saw what she had gleaned, and when she also took out and gave her what she had left over after eating her fill

(4) No Ammonite or Moabite shall be admitted into the congregation of the LORD; none of their descendants, even in the tenth generation, shall ever be admitted into the congregation of the LORD, (5) because they did not meet you with food and water on your journey after you left Egypt, and because they hired Balaam son of Beor, from Pethor of Aram-naharaim, to curse you.