There are some things that Elohim (God) is definitely for in both the Tanak and the Messianic Scriptures. He is for loving Elohim with all one's spirit, soul, mind and strength. He is for living by the Word of Elohim. There are other things He is definitely against in both the Tanak and the Messianic Scriptures. He is against adultery. He is against murder. He is against covetousness.
Then there are things that were allowed under the Old Covenant, but it isn't quite as clear whether they are still allowed under the New Covenant. Such is the case with polygyny. Quite often, people read into Scripture what their tradition says or what they think Scripture should say, rather than what it actually says.
Polygyny is defined by the American Heritage Dictionary of the English Language as "the condition or practice of having more than one wife at a single time". In Biblical terms, it is simply when two or more women are married simultaneously to one man.
When we look at the Scriptures, we find that Lamech had two wives, Adah and Zillah (Genesis 4:19). Abraham had three wives, Sarah (Genesis 11:29), Hagar (Genesis 16:3) and Keturah (Genesis 25:1). Esau had five wives, Judith and Basemath (Genesis 26:34), Mahalath (Genesis 28:9), and Adah and Aholibamah (Genesis 36:2). Jacob had four wives, Leah (Genesis 29:23), Rachel (Genesis 29:28), Bilhah (Genesis 30:4), and Zilpah (Genesis 30:9). Moses, through whom Elohim gave the Torah, had two wives, Zipporah (Exodus 2:21) and the Ethiopian woman (Numbers 12:1). David had several wives, including Micah (1 Samuel 18:27), Ahinoam, Abigail, Maacah, Haggith, Abital and Eglah (2 Samuel 3:2-5). Of course, Bathsheba was not rightfully his. But Elohim said through the prophet Nathan that He gave him his master's wives (see 2 Samuel 12:8).... continue reading>> http://www.righteouswarriors.com/controversial/article5.html
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In the Ancient Science of Love, Nasi Yashuvel speaks about the duties of a husband/wife in a marriage, things to do to keep the fire lit in a relationship, how to mend a damaged union and how to find a potential mate. He uses creative stories, personal anecdotes and relative references such as historical sacred texts and writings. This book will inspire you to work hard at improving your relationship and give you keys to a successful marriage.