Cyrill of Alexandria
Angels and Archangels, Thrones and Dominions, along with the Seraphim above them, were fashioned by God and brought forth from nothing. Included among these creations was the fallen serpent, along with the malevolent forces that accompanied him. They coexisted with other holy and intelligent beings, residing in the highest realms, marked by their glory and existing in a state far more exalted than ours. Hence, it is also proclaimed of the Lord, ‘With the Cherubim we begin you.’ Yet, the holy Cherubim possess a steadfast glory, maintaining their original state. Myriads serve God, and countless multitudes stand before Him (Dan. 7:10). In his rebellion, Satan, alongside those who fell, forfeited his glory.
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As he was on the verge of abandoning his original condition, he willfully chose to defy God, leading to the cessation of creation by the Creator of all things, that is, the holy angels, thus rejecting such a glorious and esteemed being.