As we wrap up our series in the First Epistle of John, we find ourselves back where we started – chapter 5. In these final words, John emphasizes the purpose of the book – that those who believe on the Son of God may know they have eternal life (1 John 5:13). We have therefore concluded, along with a multitude of commentators and preachers, that the primary intention of John’s first epistle is to provide believers with assurance.