Seven hundred of his wives were daughters of kings, but he also married three hundred other women. As Solomon got older, some of his wives led him to worship their gods. He wasn't like his father David, who had worshipped only the LORD God.
And why isn't God pleased? It's because he knows that each of you men has been unfaithful to the wife you married when you were young. You promised that she would be your partner, but now you have broken that promise.
And the king must not have a lot of wives—they might tempt him to be unfaithful to the LORD. Finally, the king must not try to get huge amounts of silver and gold.