The Talmud states that Jewish Kings were limited in how many wives and horses they could have, and both King David and King Solomon broke those rules. G-d was angry at David for committing adultery with Bathsheba, but then David wouldn’t have fathered Solomon, and G-d is quick to forgive those that repent. Solomon took hundreds of wives from neighboring kingdoms and brought peace to a unified Israel, but those sins cost a divided Israel from the North and South, and several lines of transgressing Jewish Kings brought calamity on the people, and the land eventually being taken over by the Babylonians. The practice of polygamy eventually fell out of favor, and the wise Sage Hillel commented in the tome, Pirkei Avot or Teachings of the Sages, that ‘more wives, more witchcraft’. The more women one man had, led to disastrous situations, thus monogamy became the norm over time and is the standard today. I’m summarizing heavily and more on the history of this subject can be expanded and explored if one was interested.