Cosmas Indicopleustes — on Rom 8:21 (The Christian Topography, Book 9)

“And that the heavenly bodies are moved by the invisible Powers, divine scripture intimates this also, when it says: For the creation was made subject to vanity not of its own will, but by reason of him who subjected it in hope that the creation itself shall be delivered from the bondage of corruption into the liberty of the glory of the children of God; meaning by this, that at the final consummation, the angels shall be delivered from this bondage, and from the ministrations which they render on account of men, for men, having then become immortal and immutable, will no longer be in need of such ministrations”