All those buildings were made out of blocks of good quality stone. They were cut to the right size. They were made smooth on their back and front sides. Those stones were used for the outside of each building and for the large courtyard. They were also used from the foundations up to the roofs.
So the Lord and King speaks. He says, “Look! I am laying a stone in Zion. It is a stone that has been tested. It is the most important stone for a firm foundation. The one who depends on that stone will never be shaken.
“Suffering city, you have been beaten by storms. You have not been comforted. I will rebuild you with turquoise stones. I will rebuild your foundations with lapis lazuli.