1 Kings 11:4-7

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. 11:5 Solomon worshiped the Sidonian goddess Astarte and the detestable Ammonite god Milcom. 11:6 Solomon did evil in the Lord’s sight; he did not remain loyal to the Lord, like his father David had. 11:7 Furthermore, on the hill east of Jerusalem Solomon built a high place for the detestable Moabite god Chemosh and for the detestable Ammonite god Milcom.