'Ancient of Days' in the Bible

"While I was watching, thrones were set up, and the Ancient of Days took his seat. His attire was white like snow; the hair of his head was like lamb's wool. His throne was ablaze with fire and its wheels were all aflame.

I was watching in the night visions, "And with the clouds of the sky one like a son of man was approaching. He went up to the Ancient of Days and was escorted before him.

until the Ancient of Days arrived and judgment was rendered in favor of the holy ones of the Most High. Then the time came for the holy ones to take possession of the kingdom.