What was Jesus talking about when he talked about hell? Well, that’s actually a great question.
The first discovery one will make on such an investigation, is the inconvenient truth that the word “hell” didn’t exist in first century Israel. This brings up one crucial problem when translating/interpreting the Bible apart from any scholastic work: we see English words that have specific linguistic and cultural connotations and meanings, and read those meanings into an ancient text which may, or may not, have intended to send the same meaning.
Therefore, we know right off the bat that when we read scripture in English, we’re not actually reading what was originally said and risk reading into the text instead of getting back to the original historical and grammatical meaning of the text. We do this in many areas, which is why competency in Biblical languages or at least Koine Greek, is a mandatory requirement at legitimate institutions of higher theological learning– and why one would do well to hold theology in humility until they are well versed in the grammatical and historical realities of any given ancient text.
It is true however, that we do see– and not infrequently– Jesus refer to “hell”. So what was he talking about?