The same applies to what St. Paul the Apostle said to his disciple Timothy, the Bishop of Ephesus: "And the things that you have heard from me among many witnesses, commit these to faithful men who will be able to teach others also" (2Tim.2:2). Here the Apostle refers to the word ‘hear’ and not ‘write'. He did not tell us what his disciple heard from him. But undoubtedly, that teaching was entrusted from St. Paul to St. Timothy then to faithful and reliable persons who in turn entrusted them to others. Thus the entrustment continued successively until it reached us.