I'm very willing to converse with you but I'm not willing to go off and read the work of some apologist. If you've studied this persons writings perhaps you can sum up. The question on the table is:
The bible doesn’t point to a source of completely new doctrine unmentioned in the bible. Have I missed the place where it does after reading it some 40 times or is there some reason that I should look to that source though the bible doesn't point to it?
As Fr. Whiteford cited, the New Testament itself uses non-biblical oral history as a source, thereby validating that as a source for us to use as well. The answer to your question is that you apparently have missed this and that you should look to that source for further illumination in regards to what the Bible teaches in addition to those things which the Bible does not reference.
Have you ever read the Church Fathers?