Well, you could ask him where in the bible it says that all persons mentioned in the bible whose names are also mentioned in extrabiblical documents should have those documents included in the bible as well. But you probably won’t get a straight answer. There are plenty of fragments and copies of all sorts of letters and books that were complied in the first four centuries A.D., including some very excellent works like the didache. But the problem is, they were not inspired by God.
Here’s a modern example.
In the Bible, there are the psalms, right?
In our contemporary songbooks, there are lots of songs based on the psalms, like “On Eagle’s wings”.
Now, suppose that you have copies (and back in the 4th century you didn’t have punctuation and you were working in Koine Greek, Aramaic, Hebrew and Latin to check what was God’s inspired word) not just of the psalms (NAB, KJV, Douay Rheims et. al) BUT ALSO copies of all those cutesy psalm songs as well to be considered as God’s word.
Now, the SONGS might have a LOT of a psalm in them. But they are NOT equal to the psalms themselves. The songs usually aren’t complete, or they put an emphasis on one part of the psalm and not another part.
A lot of people might prefer the songs because of the rhythm, because the words are more ‘modern’, etc. But they’d be wrong to put them in the Bible as the inspired psalms of God.
Just so, to put Enoch, the Shepherd of Hermes, the Didache, the gospel of Thomas et. al into the Bible (and make no mistake, all those books were scrutinized just as thoroughly as the 4 gospels, acts, et. al), is equally wrong.
God gave us the Bible through the Catholic Church the way He wanted, guided by His Spirit and embodied in the Word of His Son Jesus Christ. If He had wanted Enoch in the Bible, Enoch would BE IN THE BIBLE, since God is omnipotent and omniscent. He KNEW what He wanted and He made sure it was accomplished.
Q.E.D.
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