As is any church The only foundation of any church is Christ And He gave us His written word to guide us. All that is needful to know for salvation is contained in the Scripture It is the final Authority until we are with Christ and see Him face to face
He did?
The gospels and Acts say that Jesus appointed apostles and founded a Church. The only writing by Jesus that is ever mentioned is writing in the dust when the woman is brought to Him to be judged. Jesus never ONCE instructs his apostles or anyone else to write anything. What He DOES instruct them to do is teach, baptize, offer the Eucharist, and forgive sins. I.e., exercise teaching authority, baptize, celebrate the Mass, and hear Confessions and absolve people of their sins.