'Ancient of Days' in the Bible

I saw until thrones were placed, and the Ancient of Days took his seat. His clothing was white as snow, and the hair of his head like pure wool. His throne was fiery flames, and its wheels burning fire.

I saw in the night visions, and behold, there came with the clouds of the sky one 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 holy ones of the Most High, and the time came that the holy ones possessed the kingdom.