I've been following along in
the Daily Dose of Aramaic's series on Daniel. I noticed that throughout chapter three (verses 6, 11, 15, 17, 20, 21, 23, 26), there's a redundant description: "the burning fiery furnace." There are fires in furnaces, and fires burn; neither of these words is really necessary. This redundant description, however, may demonstrate the severity of Nebuchadnezzar's threat or indicate the extreme heat of the furnace even before it is "heated seven times more than it was usually heated" in verse 19.