Paul referred to books in 2 Tim 3:6??
2 Timothy 3:6 for of these there are those coming into the houses and leading captive the silly women, laden with sins, led away with desires manifold,
Perhaps if you could point out where he was referring to "books" in that verse we could address your questions.
2 Timothy 3
1 But understand this, that in the last days there will come times of stress.
2 For men will be lovers of self, lovers of money, proud, arrogant, abusive, disobedient to their parents, ungrateful, unholy,
3 inhuman, implacable, slanderers, profligates, fierce, haters of good,
4 treacherous, reckless, swollen with conceit, lovers of pleasure rather than lovers of God,
5 holding the form of religion but denying the power of it. Avoid such people. 6 For among them are those who make their way into households and capture weak women, burdened with sins and swayed by various impulses, 7 who will listen to anybody and can never arrive at a knowledge of the truth.
8 As Jannes and Jambres opposed Moses, so these men also oppose the truth, men of corrupt mind and counterfeit faith;
9 but they will not get very far, for their folly will be plain to all, as was that of those two men.
10 Now you have observed my teaching, my conduct, my aim in life, my faith, my patience, my love, my steadfastness,
11 my persecutions, my sufferings, what befell me at Antioch, at Ico'nium, and at Lystra, what persecutions I endured; yet from them all the Lord rescued me.
12 Indeed all who desire to live a godly life in Christ Jesus will be persecuted,
13 while evil men and impostors will go on from bad to worse, deceivers and deceived.
14 But as for you, continue in what you have learned and have firmly believed, knowing from whom you learned it
15 and how from childhood you have been acquainted with the sacred writings which are able to instruct you for salvation through faith in Christ Jesus.
16 All scripture is inspired by God and profitable for teaching, for reproof, for correction, and for training in righteousness,
17 that the man of God may be complete, equipped for every good work.
If one reads 2 Peter 3:6, we read, “16 As also in all [Paul’s] 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.”
Two points of interest:
1. Here is the only place in all the books of the Bible where we read anything close to a “table of contents” in the Bible itself. I think it’s pretty clear here that St. Peter is calling all of St. Paul’s letters “scripture” so that’s good. However as we now know, St. Paul’s letters are not all of the books that comprise the NT canon. So this still leaves the fundamental challenge Mrs. Don-o gave to metmom, which is, “Which books belong in the NT and which don’t, and why”, unanswered.
Second point of interest: The only place where other NT books (really letters) are called “Scripture” in Scripture is a passage of Scripture written by a man we Catholics claim is the first Pope. That’s interesting, don’t you think? That the only place NT scripture is described as scripture is in a work penned by a man who allegedly had such authority (if Catholicism is right)?
In other words, undoubtedly this passage was used by others to support the notion that St. Paul’s writings were Scripture. But why would it be so used if St. Peter had no such authority? Why is it used today by Protestants to insist Scripture “defines itself”? To use it in such a way without acknowledging St. Peter’s authority is circular reasoning.