'Great Things' in the Bible

I considered the horns, and behold, there came up among them another little horn, before whom there were three of the first horns plucked up by the roots: and behold, in this horn were eyes like the eyes of a man, and a mouth speaking great things.

And of the ten horns that were in his head, and of the other which came up, and before whom three fell; even of that horn that had eyes, and a mouth that spoke very great things, whose look was more stout than his fellows.