Jesus says in John 15:9-11- “As the Father has loved me, so have I loved you. Now remain in my love. 10 If you keep my commands, you will remain in my love, just as I have kept my Father’s commands and remain in his love. 11 I have told you this so that my joy may be in you and that your joy may be complete.”
John write in this first chapter of his letter, “We proclaim to you what we have seen and heard, so that you also may have fellowship with us. And our fellowship is with the Father and with his Son, Jesus Christ. 4 We write this to make our joy complete.” What Jesus did for the disciples, the disciples now do for those they are sharing the Gospel with.