1 Kings 11:4-8

4For it was so, when Solomon was old, that his wives turned his heart after other gods; and his heart was not loyal to the Lord his God, as was the heart of his father David.

5For Solomon went after Ashtoreth the goddess of the Sidonians, and after Milcom the abomination of the Ammonites.

6Solomon did evil in the sight of the Lord, and did not fully follow the Lord, as did his father David.

7Then Solomon built a high place for Chemosh the abomination of Moab, on the hill that is east of Jerusalem, and for Molech the abomination of the people of Ammon.

8And he did likewise for all his foreign wives, who burned incense and sacrificed to their gods.