Bat Kol
(Heb. בַּת קוֹל; lit. "daughter of a voice," i.e., an echo of a heavenly voice, or a divine voice "once removed"), a heavenly or divine voice which revealed God's will, choice, or judgment to man.
The Bat Kol is sometimes envisaged as a dove: The voice of the Bat Kol might be loud or soft according to circumstances; but the quality of the tone was considered noteworthy.
With the cessation of prophecy, the bat kol remained the sole means of communication between God and man. In most instances, where reference is made to a bat kol, it refers to an external voice which is heard by the recipient of the message.

Artwork: Moonlit Dreams (1874) by Gabriel Ferrier.