i.e. To this generation of Benjamites who have made themselves guilty of this foul wickedness; but this oath did not extend to their posterity. And some think it had another exception, to wit, unless the surviving Benjamites could not otherwise be supplied with wives.
Related Commentaries of Judges 21:18
Judges 21:18
18 Howbeit we may not give them wives of our daughters: for the children of Israel have sworn, saying, Cursed be he that giveth a wife to Benjamin.