'Sand of the Sea' in the Bible

And Esaias crieth out concerning Israel, Though the number of the children of Israel be as the sand of the sea, only a remnant shall be saved.

And I stood upon the sand of the sea, and I saw a beast rising up out of the sea, which had seven heads and ten horns; and upon his horns ten crowns, and upon his heads the names of blasphemy.

Satan shall be loosed from his confinement, and shall go forth to deceive the nations, that are in the four corners of the earth, Gog and Magog, to gather them together to war, whose number is as the sand of the sea.