The duty of a husband’s brother. The purpose of such a marriage was to provide a successor to the deceased (see on Genesis 38:8; Matthew 22:25). The first son born to such a union, commonly called a levirate marriage, was to become the heir of the deceased brother, in order to perpetuate his name and estate. A brother who refused to carry out this duty was held in public disgrace. This custom was common among many ancient nations, with variations, and survived into modern times among descendants of some of the earlier peoples of India. The best-known Biblical example of the operation of the principle of levirate marriage is that of Ruth the Moabitess (Ruth 1:22; 2:1 to 4:17).