I found that Christ is somehow similar to Wikipedia. Christ is the word of God and Wikipedia is a word.
In the Wikipedia rules, one cannot refer to a thing of himself without the support of others.
It was so in heaven, too.
Christ said about this: (Jn. 16:9) “Of sin, because they believe not ‘on me’.” This means that sin appeared in the universe for the reason that “they don’t believe ‘on myself'”, that is when one witness about himself.
It is a trouble that they don’t believe when one witness about himself.
It appeared (like as in Wikipedia) not without a reason: Witnessing about oneself was often abused (like spam). Likewise in heaven there was a period when there was necessary not to accept witnessing about oneself.
But it, in turn, led to problems: the appearance of the sin.
Christ came to the Earth to break this rule: In the new age of the heavens it will be allowed to witness for oneself.
Not all is so plain: Christ also said: (Jn. 8) “17 It is also written in your law, that the testimony of two men is true. 18 I am one that bear witness of myself, and the Father that sent me bears witness of me.”, (Jn. 5:31) “If I bear witness of myself, my witness is not true.”
In the age of the Gospel witnessing ‘of myself’ was not true. But now the new age, after the Gospel is coming, when the morality rises to such a level that witnessing about oneself (or for example, gathering donations for oneself) will be accepted. See also my book End of Gospel.