If brethren dwell together, and one of them die, and have no child, the wife of the dead shall not marry without unto a stranger: her husband's brother shall go in unto her, and take her to him to wife, and perform the duty of an husband's brother unto her.
Ver. 5. Her husband's brother.] This was a special exception from that general law, Lev 18:16 but yet gave no liberty under this pretext, to have more wives than one at once. See Trapp on " Mat 22:23 "