Matthew Poole and continuators on Daniel 2:1

1 AND in the second year of the reign of Nebuchadnezzar , Nebuchadnezzar dreamed dreams , wherewith his spirit was troubled , and his sleep brake from him.

Heb. In the Reign of Nebuchadnezzar, for this was properly in the fifth year of that Kings Reign, and of Daniels Captivity, and the ninth year of Iehojakim, but in the second year after Daniel had by his three years preparation, been brought before the King and approved, then the King dreamed.

It was one dream, but of many parts, therefore called dreams; chiefly for what follows.

By reason of the strangeness of it, he was terrified and in great consternation, and this made him awake.