To summarize the prerequisites:

Dear reader, do not let the false ways and false ideas of this world keep you from profitably reading this Sum of Saving Knowledge concerning the way to eternity in Heaven with God and the way away from the dreadful way leading to eternal hellfire. Make the determined choice to trust God and His Word, the Holy Bible, not human sinners, whatever their “expertise.” By trusting God’s Word, the Holy Bible, completely, you will have a firm grip on the key of knowledge.