The language and emphases observed in the Gospel reports accurately fit an AD 30 pre-church context and environment.
A full page at /gospel-stories/church-dissimilar/language-emphases will analyze 9 arguments:
Among the Gospel stories, consistent but unique and quirky tendencies repeatedly appear in Jesus’s sayings.
This is relevant because, in virtue of being unique, they were not the kinds of ways early Christians tended to speak, nor did they have any reason to expect (e.g. from prophecy) that Jesus would speak in these ways.
The Gospel traditions abounds in material unpalatable to Christians.
This page analyzes 4 kinds of evidence:
This is relevant because the church is more inclined to think of Jesus, the apostles, and themselves in positive ways (while thinking of their enemies in negative ways).