The problem is trying to make "word" literally mean text when that isn't what it means at all just like "Word" in John 1-1-3.
Know what strange? In all of your laundry lists you haven't included the passage that explicitly defines the Word of God.
The Word of God is Christ himself.
John 1:1 ESV
1:1 In the beginning was the Word, and the Word was with God, and the Word was God
It is also the words that come from the mouth of God. As Christ pointed out in
Matthew 15:6 ESV
6 he need not honor his father.’ So for the sake of your tradition you have made void the word of God.
and
Mark 7:3 ESV
13 thus making void the word of God by your tradition that you have handed down. And many such things you do.”
Christ is never wrong.
Everyone involved inthe context of this passage learned the commandment to honor your father and mother from the same place - Scripture, thus according to Christ what is written in scripture is the Word of God and cannot be broken.
John 10:35 ESV
35 If he called them gods to whom the word of God came—and Scripture cannot be broken—
You are mistaken, I am afraid.
We follow Christ, not his teachings. You may think this is the same thing, but actually it is not. It is a very different thing indeed.
Our God is not a set of teachings in a book. Our God is alive, and we walk beside him every day of our lives. His words are life, and truth. And they are not (just) written in the Bible, but on our hearts.
It is true that our God is alive and for the Christian his words are written in our hearts. However, our God is also God of revelation. The entire bible is the story of him revealing himself to the world. God does not change and does not contradict himself. Therefore, when out of his own mouth he told us the the scriptures are the word of God and cannot be broken we know that they are indeed true. So, if we love Christ we will follow his teachings:
John 14:21 ESV
21 Whoever has my commandments and keeps them, he it is who loves me. And he who loves me will be loved by my Father, and I will love him and manifest myself to him.”
The canon of scripture is all of the God inspired writings of the apostles and prophets that the Church is built upon:
Ephesians 2:19-20 ESV
19 So then you are no longer strangers and aliens,but you are fellow citizens with the saints and members of the household of God,
20 built on the foundation of the apostles and prophets, Christ Jesus himself being the cornerstone,
If we listen to the prophets and apostles we listen to the Spirit of Truth. If not we create our own religion and wallow in the spirit of error. God's revelation will never contradict his written word.
1 John 4:6 ESV
6 We are from God. Whoever knows God listens to us; whoever is not from God does not listen to us. By this we know the Spirit of truth and the spirit of error.
Malachi 3:6 ESV
6 “For I the Lord do not change; therefore you, O children of Jacob, are not consumed.
Thus the scriptures are inspired by God to make us competant in every good work that can be done:
2 Timothy 3:16-17 ESV
16 All Scripture is breathed out by God and profitable for teaching, for reproof, for correction, and for training in righteousness,
17 that the man of Godmay be competent, equipped for every good work.
Thus the bible is as clear on the doctrine of sola scriptura as it is on the canon and it's own inerrancy. If there is any good work needed in faith and practice that the man of God needs to be equipped for that is not included in scripture then this passage isn't true. Since we know that this passage is true because it is Holy Scripture (the written Word of God) we know that every work the man of God needs to be trained for is included within the pages of Holy Scripture.
Trouble is, none of those passages make the claim that "the Word of God" and "Scripture" are the same thing.
Matthew 15:6 and Mark 7:3 are abundantly clear that the scriptures are the Word of God. The Commandment Christ was accusing the hypocrits of making void was learned by everyone present from the Holy Scriptures.
That's why they're called holy Scripture, because they are the written word of God:
Romans 1:2 ESV
2 which he promised beforehand through his prophets in the holy Scriptures
And why is it that Protestants don't accept this appeal to "other scripture" to also refer to anything found in the Apocrypha?
As shown above the canon of scripture is all of the writings of the Prophets (both OT and NT) and Apostles. That is really how simple the canon is, those people spoke for God, their writings are the inspired Holy Scripture that the Church is built upon.
Ephesians 2:19-20 ESV
19 So then you are no longer strangers and aliens,but you are fellow citizens with the saints and members of the household of God,
20 built on the foundation of the apostles and prophets, Christ Jesus himself being the cornerstone,
We are commanded to listen to them:
2 Peter 1:19-21 ESV
19 And we have something more sure, the prophetic word, to which you will do well to pay attention as to a lamp shining in a dark place, until the day dawns and the morning star rises in your hearts,
20 knowing this first of all, that no prophecy of Scripture comes from someone's own interpretation.
21 For no prophecy was ever produced by the will of man, but men spoke from God as they were carried along by the Holy Spirit.
Guys, here are some links to review. I also advise that you select a version of the Bible you can understand and study it everyday. Don't leave anything out. Read it through over and over again. The ESV is the best one we have available right now. Try the ESV Study Bible. It is superb!
Home (ESV Bible Online) This is the searchable ESV I use.
Home | ESV Study Bible | Crossway This is a superb Study Bible.
Why We Believe the Bible, Part 1 :: Desiring God Christian Resource Library
John Piper's Seminar on Why we believe the Bible.
The Bible Is God's Word :: Grace to You
John Macarthur's Sermon on the Bible as God's word.
Monergism :: Search Results
A plethora of links on Biblical inerrancy.
IS THE BIBLE INERRANT?
Dr. John M. Frame on Biblical Inerrancy.
The Inspiration of Scripture (by Ron Rhodes)
Ron Rhodes on the Bible.
R.C. Sproul: Scripture Alone Video
Dr. Sproul on Sola Scriptura