1 Kings 11:8

11:8 He built high places for all his foreign wives so they could burn incense and make sacrifices to their gods.

1 Kings 11:3-4

11:3 He had 700 royal wives and 300 concubines; his wives had a powerful influence over him. 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.