Ruth 1:4 - Joseph Benson’s Commentary on the Old and New Testaments

They took them wives of the daughters of Moab Either these women were proselytes when they married them, which what is afterward recorded of Ruth (Rth 1:16) renders very probable, or they sinned in marrying them, and therefore might be punished with short lives and want of issue. The Chaldee paraphrast declares for the latter opinion. “Their days were cut short,” says he, “because they married strange women.”