This way of thinking demonstrates why you and some of us are often on such different pages theologically. You begin with a much more human, fallible view of scripture. You anticipate errors, mistakes and irreconcilable contradictions. You see the writers going off on their own contrary to God's direction. Thus, you are not willing to assume that James and Paul might actually agree. You will not look for a reason to explain it that way. Our differing views of Scripture put us in very different places on such questions.
I came to this way of looking at scriptures by studying scriptures - not reading doctrines about scriptures. The attempt is to approach scriptures without any pre-conceived notions about it. It isn't anticipating errors, mistakes, and irreconcilable contradictions. Neither is it assuming that there can't be any errors, mistakes, or contradictions. It is an approach that expects to hear God speaking through his Word.
Read what Paul says. Read what James says. Study Romans. Study James. Look at what's actually in the text, rather than what other people write about the text. Thus I ask, show me where James talks about faith without works - actual words from the biblical writer; not interpretations by some other person.
James notes that someone is saying that he has faith but he has no works. Apparently this person looks at his brothers and sisters in the faith and has no love for them, sending them on their way with no concern at all. This does not bother them. Yet he still claims to be a person of true faith. But is this real faith? Is this the correct teaching of faith and works? James would say no. Paul also knew that his teaching on justification and faith was being distorted in this very way. There are those who seem to believe that they can live ungodly lives and still claim to be justified in faith. They were even going to the extreme of saying: 'Let's sin that grace may increase!' 'Let us do evil that good may then come!' Check out Romans 3 and 5 for some of his rhetorical questioning on these issues.
But faith does not live in isolation. James is clearly concerned about claims that there is such a 'faith' that can live without producing any works; a dead faith being a true faith. In Galatians 6:5 Paul writes that "in Christ Jesus neither circumcision nor uncircumcision means anything, but faith working through love." In his commentary on this very verse and chapter Luther states that "faith must of course be sincere. It must be a faith that performs good works through love. If faith lacks love it is not true faith."
If you read Paul and James
in context you can easily see how each addresses the issues surrounding justification and faith, yet without having to be in contradiction. Both James and Paul clearly note that faith justifies. James 2, Romans 4. They both use Abraham as an example of this, who "believed God" and "it was counted to him as righteousness."
The reference to works is seen from two positions. One is from the position of what declares us righteous before God. Faith in Christ Jesus. "By grace you are saved, through faith. And this is not your own doing; it is the gift of God." Eph. 2:8. So are works therefore useless, unnecessary? Not at all. True faith will produce them. James is clear on that. Can a man claim that he has true faith while living contrary to that faith? No. As Luther again said: "Idle faith is not justifying faith." And Paul is clear on that as well. Continuing the above quote from Ephesians: "For we are his workmanship, created in Christ Jesus for good works, which God prepared beforehand, that we should walk in them."
To me Paul and James are on the 'same page.' But if you want them to be seen in contradiction, so be it. Remove James from the canon and keep Paul. But if you think, as some in Jame's congregation did, that faith without works is okay; that dead faith is true faith, then you are disagreeing with Paul as well as James.