I found it was not so easie to imprint right Notions in his Mind about the Devil，as it was about the Being of a God. Nature assisted all my Arguments to Evidence to him，even the Necessity Of a great first Cause and over-ruling governing Power；a secret directing Providence，and of the Equity，and Justice，of paying Homage to him that made us，and the like. But there appeared nothing of all this in the Notion of an evil Spirit；of his Original，his Being，his Nature，and above all of his Inclination to do Evil，and to draw us in to do so too；and the poor Creature puzzl'd me once in such a manner，by a Question meerly natural and innocent，that I scarce knew what to say to him. I had been talking a great deal to him of the Power of God，his Omnipotence，his dreadful Nature to Sin，his being a consuming Fire to the Workers of Iniquity；how，as he had made us all，he could destroy us and all the World in a Moment；and he listen'd with great Seriousness to me all the while.
After this，I had been telling him how the Devil was God's Enemy in the Hearts of Men，and used all his Malice and Skill to defeat the good Designs of Providence，and to ruine the Kingdom of Christ in the World；and the like. Well，says Friday，but you say，God is so strong，so great，is he not much strong，much might as the Devil？ Yes，yes，says I，Friday，God is stronger than the Devil，God is above the Devil，and therefore we pray to God to tread him down under our Feet，and enable us to resist his Temptations and quench his fiery Darts. But，says he again，if God much strong，much might as the Devil，why God no kill the Devil，so make him no more do wicked？