'Ancient of Days' in the Bible

“As I kept watching,thrones were set in place,and the Ancient of Days took His seat.His clothing was white like snow,and the hair of His head like whitest wool.His throne was flaming fire;its wheels were blazing fire.

I continued watching in the night visions,and I saw One like a son of mancoming with the clouds of heaven.He approached the Ancient of Daysand was escorted before Him.

until the Ancient of Days arrived and a judgment was given in favor of the holy ones of the Most High, for the time had come, and the holy ones took possession of the kingdom.