1 Kings 11:4-8

4For when Solomon was old, his wives turned his heart away 1to follow other gods; and 2his heart was not 3wholly devoted to the Lord his God, as the heart of his father David had been. 5For Solomon became a follower of 4Ashtoreth the goddess of the Sidonians, and of 56Milcom the abhorrent idol of the Ammonites. 6So Solomon did what was evil in the sight of the Lord, and did not follow the Lord fully, as his father David had done. 7Then Solomon built a high place for 7Chemosh, the abhorrent idol of Moab, on the mountain that is 8east of Jerusalem, and for 9Molech, the abhorrent idol of the sons of Ammon. 8He also did the same for all his foreign wives, who burned incense and sacrificed to their gods.