1 Kings 11:4

11:4 When Solomon became old, his wives shifted his allegiance to other gods; he was not wholeheartedly devoted to the Lord his God, as his father David had been.

1 Kings 11:33

11:33 I am taking the kingdom from him because they have abandoned me and worshiped the Sidonian goddess Astarte, the Moabite god Chemosh, and the Ammonite god Milcom. They have not followed my instructions by doing what I approve and obeying my rules and regulations, like Solomon’s father David did.