Hi
John is not talking, he's writing. And John is writing that which Jesus instructed him to write, namely: Revelation 2:2 "I know your works, your toil and your patient endurance, and how you cannot bear with those who are evil, but have tested those who call themselves apostles and are not, and found them to be false. 3I know you are enduring patiently and bearing up for my name’s sake, and you have not grown weary. 4But I have this against you, that you have abandoned the love you had at first. 5Remember therefore from where you have fallen; repent, and do the works you did at first. If not, I will come to you and remove your lampstand from its place, unless you repent. 6Yet this you have: you hate the works of the Nicolaitans, which I also hate. 7He who has an ear, let him hear what the Spirit says to the churches. To the one who conquers I will grant to eat of the tree of life, which is in the paradise of God.’"
Jesus tells the people of Ephesus twice to repent, and warns only those who overcome or "conquer" will receive life in paradise. Does an eternally saved person need to repent? Has an eternally saved person already overcome/conquered?
Compare that with that which Jesus instructed John to write to the assembly at Philadelphia: Revelation 3:8 “‘I know your works. Behold, I have set before you an open door, which no one is able to shut. I know that you have but little power, and yet you have kept my word and have not denied my name. 9Behold, I will make those of the synagogue of Satan who say that they are Jews and are not, but lie—behold, I will make them come and bow down before your feet, and they will learn that I have loved you. 10Because you have kept my word about patient endurance, I will keep you from the hour of trial that is coming on the whole world, to try those who dwell on the earth. 11I am coming soon. Hold fast what you have, so that no one may seize your crown. 12The one who conquers, I will make him a pillar in the temple of my God. Never shall he go out of it, and I will write on him the name of my God, and the name of the city of my God, the new Jerusalem, which comes down from my God out of heaven, and my own new name."
It is clear that Jesus requires ongoing repentance, ongoing abiding in Him, ongoing obedience, and ongoing faith in order for ongoing salvation / sanctification. Otherwise, the Christians assembled at Ephesus, who were saved at one point, would not have to turn back again (repent) in order to be saved and receive life in paradise.