In what language was the New Covenant originally written? I thought that the New Covenant was written in Hebrew or Aramaic.
Impressed by the work of the aforementioned scholars, and others, as I am, I suspect the statement that all the manuscripts were written in Hebrew is overstated. There is some evidence, however, that Matthew’s gospel was originally penned in a Semitic tongue. Though we don’t have a manuscript of it, we do have attestation from ancient Christian writers attesting to it.
In sum, I argue for a preponderance of Greek texts. That said, I also argue that Hebraic thought processes underlie the teachings found in the New Testament, which were mostly written down in Greek.