It's an interesting topic and I am indebted to
@Kais_1 for bringing it up...
If a future historian were to take our entries in this forum, perhaps in response to questions that had been deleted they may conclude that we were very variable people, angry one day, incoherent another and occasionally rather humorous. These would all be facets of our character brought out by the interaction we had with others.
One thing that has formed in my mind in terms of "who said what" is that
when they said it and
who they said it to is of prime importance. For those Galatians confused by the legalists, they needed to understand grace, and Paul preached it. The Corinthians needed to see the importance of love over pure dynamism. James needed to convey to a Church that already understood grace, where works still had their place.