'Dreamers' in the Bible

A Song of the Ascents. In Jehovah's turning back to the captivity of Zion, We have been as dreamers.

And ye, ye do not hearken unto your prophets, and unto your diviners, and unto your dreamers, and unto your observers of clouds, and unto your sorcerers who are speaking unto you, saying, Ye do not serve the king of Babylon, --