Beloved, now we are children of God, and it is not yet revealed what we will be. But we know that, when he is revealed, we will be like him; for we will see him just as he is.

 This passage is directed against the Gnostic false teachers. As we have seen they produced more than one reason to justify sin. They said that the body was evil and that, therefore, there was no harm in sating its lusts, because what happened to it was of no importance. They said that the truly spiritual man was so armoured with the Spirit that he could sin to his heart's content and take no harm from it. They even said that the true Gnostic was under obligation both to scale the heights and to plumb the depths so that he might be truly said to know all things. Behind John's answer there is a kind of analysis of sin. 