'Empty' in the Bible

Now the earth was formless and empty, and darkness [was] over the face of the deep. And the Spirit of God [was] hovering over the surface of the waters.

And they took him and threw him into the pit (the pit [was] empty; there was no water in it).

And the seven thin and ugly cows coming up after them, they [are] seven years, and the seven empty ears of grain, scorched by the east wind, they are [also] seven years of famine.