'Great Things' in the Bible

I considered the horns, and behold, there came up among them another horn, a little one, before which three of the first horns were 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 concerning the ten horns that were on its head, and the other [horn] which came up, and before which three fell, even that horn that had eyes, and a mouth that spoke great things, whose look was more stout than its fellows.