If one were to put together all the words that are recorded to come out of Jesus' mouth in the New Testament, for how long would such collection of speeches amount to?
Naturally, the answer depends on:
the speed at which Jesus spoke, which we do not know. Yet, self-description of Jesus as "gentle" (Matthew 11:29), and perhaps influence of classical movies about Jesus might incline us to assume he spoke slower than a normal person would do, particularly when preaching.
how the translation of words from Aramaic (Jesus main spoken language) to the original Greek of the gospels, and then latter to Latin (Jerome) and English are inflated. This is, the ratio of words between Aramaic and e.g. English, for an original phrase of Jesus). (we also know Jesus spoke Hebrew and perhaps Latin).
whether to consider duplicates or not (e.g. same parable in different gospels). Surely having two metrics, one with and one without is informative. I would be satisfied however with a metric that does include duplicates.
maybe there are other issues to be considered, but those are the ones I can think of.
Thus, in my view, a transparent and satisfactory calculation would include the number of words (mainly) in Aramaic that Jesus pronounced, and adjust this by the ratio of works from Aramaic and English, and then assume a certain words per minute metric, from where we could produce a final amount of minutes/hours Jesus speaks in the New Testament.
Are you aware of any such calculation? My search of phrases like "for how long did Jesus speak" or "hours of jesus speech gospels", or etc gives me nothing.