The answer
The Holy Bible affirms the fact of the devil’s existence as a being with certain attributes, will, and work. For example:
a. In the Book of Job, God enters into a dialogue with the devil, who is one of the angelic
beings; and the devil reveals that he is a being who roams the earth. He makes accusations against the righteous Job.
b. The devil tempted the Lord Christ in the wilderness, had a conversation with Him,
and then departed from Him until an opportune time (Luke 4:1–13).
c. The archangel Michael contended with him (Rev. 12:7–9 and Jude 9).
d. The devil wanted to sift the disciples of the Lord like grains of wheat (Luke 22:31).
e. The devil caused some of the faithful to be cast into prison (Rev. 2:10).
f. The devil has devices of which we are not ignorant (2 Cor. 2:11). We must beware of
his craftiness (2 Cor 11:3) and knowledge (Rev. 12:12). He has a will (2 Tim. 2:26) and emotions of pride (1 Tim. 3:6) and anger (Rev. 12:12).
All this implies that the devil is a real being and not merely a figment of human imagination.
Fr. Tadros Yacoub Malaty