Wild Card Discussion based on: Calvin Institutes: The Created and Humanity Created, 1.14.19.
Devils are not thoughts, but actualities
The notion that devils are nothing other than the frame of the mind comes about just as the notion that angels are nothing but “good inspiration or impulses which God arouses in men’s minds. These notions Calvin refutes by using scripture to defend the existence of evil forces, the devil.
The unclean spirits mentioned in scripture are those who have changed from their created forms. They are also called apostate angels. Which names: unclean spirits and apostate angels point not to human perceptions but the reality of being. Apostle John also compares the children of God with the children of the devil. John accordingly also adds that “the devil has sinned form the beginning.” John’s comparison of the children of God and also the devils sinfulness from the beginning also alludes to the fact that the devil is not just human imagination but a reality.
In the same vein, Jude again sets a good archangel Michael against the devil. In the scripture again, satan appeared with the holy angels in God’s presence leading to the devil tormenting Job. Jesus also encountered the devil in many instances as written in scripture, Matthew records that the devil God’s judgment called on Jesus to depart from them. Also, Jesus also tells the devil to depart into the eternal fire prepared for the devil and his angels.
By these scriptures, Calvin concludes that it will be pointless for anyone to believe that the devil is only a frame of the human mind because scripture amply proofs that the devil is a reality and a created being.