While John chooses to remain anonymous in his gospel, he quietly refers to himself as the "disciple whom Jesus loved." He's not bragging. He's simply overwhelmed by the love of God he has experienced in Christ. In his first letter he reminds us of "how great the love is that the Father has lavished on us..," and that the supreme expression of God's love is found in Christ, "not that we loved God, but that he loved us and sent his Son as an atoning sacrifice for our sins."
We've entitled our series, "Knowing that You Know Him." Our assurance, according to John, is based on something far more profound than a few theological propositions. It is based on the fellowship we have with the Father and the Son, and how dramatically our vital union with the Father and the Son changes everything we are and do.