However, for this cause I obtained mercy, that in me first, Jesus Christ might display all his patience, for an example of those who were going to believe in him for eternal life.
Eternal life ...  Christianity is involved with the supernatural, a fact abundantly clear in such an expression as this.  The grand scope and purpose of Christianity is to accomplish the forgiveness of people's sins (salvation), and in the upper and better world usher them into eternal and better life where they may have in utmost joy and tranquillity, fellowship with the Creator forever.