Gehenna is NOT hell and eternity.
Jesus was a Jew, talking to Jews.
When Jesus used a Jewish term, like "Korban", if he wanted to CORRECT a Jewish tradition or understanding of the term, he did so. He even corrected Jewish SCRIPTURE itself!
But Jesus just said "Gehenna", and used it in sentence after sentence, to make a point, to Jews.
To JEWS, Gehenna means Hell AND Purgatory. Those who are not lost forever are sent to hell and purged of their sins there, then go to Paradise.
That is what "Gehenna" means. Jesus didn't define it, because he didn't HAVE to. He was talking to Jews. Every Jew understood that meaning. Still do.
Gehenna does NOT necessarily mean permanent hell.
Christians can repeat over and over again that it DOES, but they don't know what they are talking about.
A Jew talking to Jews just saying Gehenna and using it meant what JEWS meant by it, and Gehenna to JEWS includes Purgatory.
It's not really a debatable point.
If Christians have built 4 centuries of doctrines squabbling over this but never bothered to consult the Jews it's the CHRISTIAN'S problem. Jesus was a Jew, and to a JEW, what Jesus meant is clear.
And it's clear to any Christian that reads it as a Jew would read it.
Gehenna is a place of torment, temporal for some, permanent for others, depending on how bad they were in life.
That's just not hard to understand. It's what the term MEANS. If Christians prefer their own traditional doctrines, which don't date from very ancient times at all but from times after they ceased being in close contact with Judaism intellectually, well, they can do so, but the text is self-explanatory, and with just one word Jesus has given the whole answer. Unfortunately, apparently only Jews can understand it, and unfortunately they don't read the Gospels much.
It's sort of like the Great Commandment. It's the opening of the Shema. But Jews today don't know it, and neither do Christians. Pity. Jesus knew that. So did his Jewish audience. And that was a big thing, and why he was so praised for saying it.
*BALDERDASH
You are wrong in what you are claiming. That you do so dogmatically while criticising the Church is a scandal. I am too busy to deal with this now. I will as soon as I have time.