This message is the conclusion of the book of 1 John. In the final chapter, John tells the reader that there are three who testify that Jesus is the Son of God. Those John calls to the witness stand are rather unusual. Listen in! But the testimony is the same: Jesus is the Son of God. All who believe in the Son of God have eternal life. The vise versa is just as true. And John wants the reader to know that salvation is something that can be known with certainty!