[Fiannan]

The very wording of the Ten Commandments, a chief pillar of American public morality then as now, presupposes polygamy. In Deuteronomy, the commandment not to "covet" is divided into two parts. The command not to covet the neighbor's spouse is addressed only to men, and the command not to covet the neighbor's house, field, etc., is addressed to all of the people of Israel. A standard Torah commentary used in my temple puts it this way: "Because men could have more than one wife, an unmarried woman could covet another's husband and even end up married to him."

Polygamy? It's positively biblical | Philadelphia Inquirer | 05/18/2008

Gotta disagree Heavenguard...women were also considered people in the Old Testament. IN a polygamist religion a single woman can yearn for one day being married to a man who is already married so in a sense she is not coveting the unattainable -- or placed in a situation where she may be tempted to do harm to his wife so she can take her place.