'Stone' in the Bible

Notice the stone I have set before Joshua; on that one stone are seven eyes. I will engrave an inscription on it”—this is the declaration of the Lord of Hosts—“and I will take away the guilt of this land in a single day.

On that day I will make Jerusalem a heavy stone for all the peoples; all who try to lift it will injure themselves severely when all the nations of the earth gather against her.