'Ancient of Days' in the Bible

I beheld till thrones were placed, and one who was ancient of days sat. His raiment was white as snow, and the hair of his head like pure wool. His throne was fiery flames, [and] the wheels of it burning fire.

I saw in the night visions, and, behold, there came with the clouds of heaven [somebody] like a son of man. And he came even to the ancient of days, and they brought him near before him.

until the ancient of days came. And judgment was given to the sanctified of the Most High, and the time came that the sanctified possessed the kingdom.