This is private interpretation, warned against in 1 Peter. However, I am happy to see you agreeing that the revelation through the scripture is not the entire revelation.
Its in 2nd Peter 1 but read the whole chapter and include it or you lose the context of what Peter is teaching.
1Simeon* Peter, a servant* and apostle of Jesus Christ,
To those who have received a faith as precious as ours through the righteousness of our God and Saviour Jesus Christ:*
2 May grace and peace be yours in abundance in the knowledge of God and of Jesus our Lord.
3 His divine power has given us everything needed for life and godliness, through the knowledge of him who called us by* his own glory and goodness. 4Thus he has given us, through these things, his precious and very great promises, so that through them you may escape from the corruption that is in the world because of lust, and may become participants in the divine nature. 5For this very reason, you must make every effort to support your faith with goodness, and goodness with knowledge, 6and knowledge with self-control, and self-control with endurance, and endurance with godliness, 7and godliness with mutual* affection, and mutual* affection with love. 8For if these things are yours and are increasing among you, they keep you from being ineffective and unfruitful in the knowledge of our Lord Jesus Christ. 9For anyone who lacks these things is short-sighted and blind, and is forgetful of the cleansing of past sins. 10Therefore, brothers and sisters,* be all the more eager to confirm your call and election, for if you do this, you will never stumble. 11For in this way, entry into the eternal kingdom of our Lord and Saviour Jesus Christ will be richly provided for you.
12 Therefore I intend to keep on reminding you of these things, though you know them already and are established in the truth that has come to you. 13I think it right, as long as I am in this body,* to refresh your memory, 14since I know that my death* will come soon, as indeed our Lord Jesus Christ has made clear to me. 15And I will make every effort so that after my departure you may be able at any time to recall these things.
16 For we did not follow cleverly devised myths when we made known to you the power and coming of our Lord Jesus Christ, but we had been eyewitnesses of his majesty. 17For he received honour and glory from God the Father when that voice was conveyed to him by the Majestic Glory, saying, This is my Son, my Beloved,* with whom I am well pleased. 18We ourselves heard this voice come from heaven, while we were with him on the holy mountain.
19 So we have the prophetic message more fully confirmed. You will do well to be attentive to this as to a lamp shining in a dark place, until the day dawns and the morning star rises in your hearts. 20First of all you must understand this, that no prophecy of scripture is a matter of ones own interpretation, 21because no prophecy ever came by human will, but men and women moved by the Holy Spirit spoke from God.*
But, of a Truth, dear annalex, it is hardly a "private interpretation" when the author Himself confirms that He is indeed the author. That is, after all, what the passage says (from DarthVader's post:)
But of course I know otherwise because I have known Him personally for nigh onto a half century. Moreover, all Christians should come to know Him this way (John 1-4, 14-17, Romans 8, I Cor 2, etc:)
But ye are not in the flesh, but in the Spirit, if so be that the Spirit of God dwell in you. Now if any man have not the Spirit of Christ, he is none of his. - Romans 8:9
Hereby know we that we dwell in him, and he in us, because he hath given us of his Spirit. - I John 4:13