'Stone' in the Bible

For see, the stone which I have put before Joshua; on one stone are seven eyes: see, the design cut on it will be my work, says the Lord of armies, and I will take away the sin of that land in one day.

And they made their hearts like the hardest stone, so that they might not give ear to the law and the words which the Lord of armies had said by the earlier prophets: and there came great wrath from the Lord of armies.

And it will come about in that day that I will make Jerusalem a stone of great weight for all the peoples; all those who take it up will be badly wounded; and all the nations of the earth will come together against it.