דניאל ז:ט פירוש: רש״י

until thrones were set up Thrones were set up and established to sit in judgment, one for judgment for the nations of the world and one for charity for Israel.

and the Ancient of Days sat The Holy One, blessed be He, was sitting in judgment on this kingdom and on those before it, who provoked Him and oppressed His children.

as white as snow to whiten the iniquities of His people.