Jude teaches us to earnestly contend for that form of doctrine that gives God the glory and was delivered in its purity during the time of Christ and the Apostles.
We may be called to anonymous service to our Redeemer. Not many may know our name. Or if they do, they know very little about us, but … Jesus knows us!
It would seem that John wants us all to be able to lay our head on Jesus’ chest.