True, but I thought the OP had been referring to Genesis, not the NT; even still, Peter counted Paul's writings as Scripture and yet Jesus (who spoke the parables) commissioned Paul...
2 Peter 3:15-16 KJV
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; [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.
Acts 9:15 KJV
But the Lord said unto him, Go thy way: for he (Saul/Paul) is a chosen vessel unto me, to bear my name before the Gentiles, and kings, and the children of Israel:
the majority of the NT was written by Paul & Peter.