**1) **
There isn’t one…next…
really though, I suppose the common denominator is that scripture is the only source of divine revelation for the church. In that it is the norm for the way God directs his authority to the Church.
So what happened before the Apostles wrote the Sacred Scripture of the New testament? What about before Moses wrote the Pentatude?
Beyond that each major block will have different opinions on how this should be taken. For instance the more Reformed have in worship the “regulative principle”, where unless it is commanded then it is forbidden. Whereas Luther and the Anglican Church (in general) are looser, and what scripture does not comment on is allowed. Same with various opinions on the role of tradition and church authority. Anglican (especially) and Luther had a larger role, the reformed had some role (magisterial reformation), and then the Zwinglian and Anabaptist tended to be more extreme.
Being Anglican I give unto thee:
“Holy Scripture containeth all things necessary to salvation: so that whatsoever is not read
therein, nor may be proved thereby, is not to be required of any man, that it should be
believed as an article of the Faith, or be thought requisite or necessary to salvation. In the
name of the Holy Scripture we do understand those canonical Books of the Old and New
Testament, of whose authority was never any doubt in the Church. Article VI”
“Q. How do we understand the meaning of the Bible?
A. We understand the meaning of the Bible by the help of
the Holy Spirit, who guides the Church in the true
interpretation of the Scriptures.” CAC (Catechism of the Anglican Church

)
Why has the Holy Spirit lead to so many different interpretations that have caused so many rifts in the body of Christ?
Book recommendation: “the Last Word”, by Bishop N.T. Wright
**
2)**
"XI. Of the Justification of Man.
We are accounted righteous before God, only for the merit of our Lord and Saviour Jesus
Christ by Faith, and not for our own works or deservings. Wherefore, that we are justified
by Faith only, is a most wholesome Doctrine, and very full of comfort, as more largely is
expressed in the Homily of Justification.
XII. Of Good Works.
Albeit that Good Works, which are the fruits of Faith, and follow after Justification, cannot
put away our sins, and endure the severity of God’s judgment; yet are they pleasing and
acceptable to God in Christ, and do spring out necessarily of a true and lively Faith;
insomuch that by them a lively Faith may be as evidently known as a tree discerned by the
fruit.
"
So by “salvation” we mean “Justification”. How one is considered to be a child of God, and leads to being adopted into the family and given the gift of the Holy Spirit, ect. One in this state can expect to be with their Lord when they die. And that good works are not done to aver God’s wrath, although he will use discipline to correct, but not in judgment.
I’d say that is a good summary of all Protestants…but still there
may be slight nuances.
**3) **
sola scriptura is derived, not explicit. More like we know that scripture is a source of infallible divine revelation and authority, but have not been given assurance about anything else.
This of course begs the question "What great authority has assured you that the 27 books of the new teatament are indeed the inerrant word of God? Give you a hint…ROME

.
sola fide is derived from the all the salvation passages that describe Justification by faith, by the teachings especially in the book of Romans on Abraham and Galatians on the contrast with the works of the law, and then by Protestants believing the few verses that seem contrary to be interpreted differently. I would say most all of our arguments for it derive from our interpretations of Romans and Galatians
But the “alone” part is nowhere in scripture, well except where it says “not by faith alone”. The thing is, The Catholic belief of “Faith and…” fits without having to interpret passages differently then they read.
But I’m sure these have been debated back on forth on this forums allot, so I’ll refrain from scripture bombing

This would be the normal lines of arguments we take boiled down.
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4)** Please show me a Protestant confession or creed which says this in the way you said and nuanced it
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5)** You’re welcome!
May be better if you want to recommend some Protestant systematic theologies, if you get a Lutheran, Reformed Presbyterian, Baptist, Anglican (although we don’t really have much in the systematic theologies area unless it is from the Tractarian era) and a generic Evangelical and look up definitions in them, what would give a good overview of the spectrum.