I follow the WORD. That is where you and I part company.
No Jesus never substantiated anything Paul said that is in your imagination.
Nope, it is not in my imagination.
Jesus said the following.
Jhn 14:26, But the Comforter, which is the Holy Ghost, whom the Father will send in my name, he shall teach you all things, and bring all things to your remembrance, whatsoever I have said unto you.
Jhn 16:13, Howbeit when he, the Spirit of truth, is come, he will guide you into all truth: for he shall not speak of himself; but whatsoever he shall hear, that shall he speak: and he will shew you things to come.
Jesus was speaking to Peter among others who would receive the Holy Spirit. So, in this, He substantiated Peter's writings.
Peter substantiated Paul's writings as being scripture here,
2Pe 3:15, And account that the longsuffering of our Lord is salvation; even as our beloved brother Paul also according to the wisdom given unto him hath written unto you;
2Pe 3:16, As also in all his epistles, speaking in them of these things; in which are some things hard to be understood, which they that are unlearned and unstable wrest, as they do also the other scriptures, unto their own destruction.
Therefore, Jesus indirectly substantiated Paul.
But, your rejection of these things was prophesied by Paul,
2Ti 4:3, For the time will come when they will not endure sound doctrine; but after their own lusts shall they heap to themselves teachers, having itching ears;
2Ti 4:4, And they shall turn away their ears from the truth, and shall be turned unto fables.
And it is also not untrue that I follow the Word.