1 Kings 11:4

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.

1 Kings 11:10

11:10 and had warned him about this very thing, so that he would not follow other gods. But he did not obey the Lord’s command.

1 Kings 14:9

14:9 You have sinned more than all who came before you. You went and angered me by making other gods, formed out of metal; you have completely disregarded me.