Komentarz do Królów I 11:27

It was about this matter. Concerning which he rebuked him.

Shlomo had built up the Millo. And with this building, he closed up the breach of the City of Dovid which was behind the Millo.¹¹See above 9:24. He said to him, “Your father made breaches in the wall for the festival pilgrims to enter, and you closed it up, to create a labor force for Pharaoh’s daughter, to station there her menservants and maidservants.”¹²Maseches Sanhedrin 101b and Rashi there.

and closed up – that is to say, from the beginning the wall of the city of David was breached in order that people could go in and out in order to bring their complaints to the king. And now see, Shlomo closed up the breach as if he has no concern for administering justice to the people.