A Mormon scripture state that "]f any man espouse a virgin, and desire to espouse another, and the first give her consent, and if he espouse the second, and they are virgins, and have vowed to no other man, then is he justified." You can get more verses about polygamy in the Book of Mormon at http://skepticsannotatedbible.com/bom/says_about/polygamy.html.
the mormon Bible is the wrong terminology. its the book of mormon accompanied by the pearl of great price. and basically it doesn't say its not okay to be polygamous. also in the king James Bible there are instances of polygamy. also, the religion gave up polygamy when the us gov. outlawed it officially in the 19 th century. which is where the confusion comes into play. fundamental Mormons believe they shouldn't have to comprise their belief and think that is what the main church did when they gave up polygamy.
Oh boy, another first time user asking a bizarre Mormon question. It's amazing how often this comes up. We already had one anti-Mormon admit he creates new accounts to ask these kinds of questions so he can answer them himself. In the unlikely event you aren't him, let me go ahead and answer your question like its legitimate. - There is no Mormon Bible, the Book of Mormon clearly states that polygamy is wrong unless directed by God. God allowed it for a time in Old Testament times, and he allowed it for a time when the church was first restored and under persecution. It is no longer allowed. Scripture and modern revelation make that very clear. If you want the real answer on what we believe, this and all other answers about us and our beliefs can be found at www.Mormon.org. - If you are who I think you are, I want to say just how desperate you appear creating these bogus accounts just so you can have a forum to post those links to idiotic anti-Mormon sites. Your deceptive and repeated attempts at this dishonest behavior speak louder than anything what you believe. Satan is the father of ALL lies.
It does not say that it is okay. In fact, there is an official declaration in the back of the Doctrine and Covenants that explicitly states the practice is no longer church accepted or recognized since 1891 and anyone who still practices it will be excommunicated, which is permanently kicked out. The declaration was made to coincide with U.S. law banning it, since Mormons are normally a very law abiding people.