1 Kings 11:4, 33

As Solomon grew old, his wives turned his heart after other gods, and his heart was not fully devoted to the LORD his God, as the heart of David his father had been.

I will do this because they have forsaken me and worshiped Ashtoreth the goddess of the Sidonians, Chemosh the god of the Moabites, and Molek the god of the Ammonites, and have not walked in obedience to me, nor done what is right in my eyes, nor kept my decrees and laws as David, Solomon’s father, did.