The answer
God created all heavenly beings as good; indeed, all His creations of any kind are good in their original nature. However, the wicked angels fell because they misused the gift of free will. They fell by haughtily clinging to their own personal will. The apostle Judas says of them: “And the angels who did not keep their proper domain, but left their own abode, He has reserved in everlasting chains under darkness for the judgment of the great day” (Jude 6). On the other hand, the good angels continue in goodness because they chose humility and cooperation with the grace of God. The evil angels, as they persist in their wickedness, become ever more deeply evil, which causes them to be envious of humanity and despise us, and seek to oppose us by all means possible. Their great powers, instead of being used to glorify God, are instead turned to deceiving and contending against humanity; luring humanity to share in their blasphemies, disobedience, and defiance against God. The devil himself became as father and teacher to all who submit to him, urging them also to deceive in turn their own brothers and sisters.
Fr. Tadros Yacoub Malaty