Why did Jacob include such a lengthy condemnation of unauthorized polygamy in his speech? Besides the immediate issue of wealth and immorality facing the Nephite community, Jacob may have intended to build upon or clarify one provision in biblical law, which allowed for and regulated polygamy (Deuteronomy 21:15–17). His father Lehi had expressly told his sons that "they should have save it were one wife, and concubines they should have none" (Jacob 3:5). Jacob now extended Lehi's restriction to all the Nephites as a condition they needed to observe. It is obvious that Jacob did not want the potential abuses of polygamy to corrupt the fledgling Nephite community, and so he singled out the sins of David and Solomon as a strong example of the need to guard against lustful or exploitative behavior.