100% of Jesus’ alleged references to “Hell” are actually references to Gehenna.
Gehenna doesn’t mean eternal fire or torment. It is the actual name of a physical, geographic location – the Valley of Hinnom.
The section of this valley referred to as “Gehenna” was known as an evil and dark place, used for a variety of evil acts throughout Israel’s history. In the time of Hosea, the rebellious Israelites committed child sacrifice there to honor the pagan god Molech (Molek) found in 2 Kings 17. In 2 Kings 23:10, King Josiah “desecrated Topheth, which was in the Valley of Hinnom, so no one could use it to sacrifice their son or daughter in the fire to Molek.”
This valley was known as a place of fiery torment and sacrifice in honor of Pagan gods. When King Josiah burned down the evil altars, the location remained a site for burning pagan artifacts as the country was purged of idolatry. As time when on and there were no more idols to burn, people began dumping and burning their trash in the valley, a practice that continued all the way through the time of Jesus.
In fact, when Jesus spoke of “Gehenna”, it was literally a place of continuous fire as Jerusalem’s defacto trash dump, in which fires would constantly burn away whatever was not wanted inside of the city. Any type of filth, including human cadavers were thrown into this dump to burn away. Isaiah 66 speaks of this saying “And they will go out and look on the dead bodies of those who rebelled against me; the worms that eat them will not die, the fire that burns them will not be quenched, and they will be loathsome to all mankind.”
When we look at history, we see that the Gehenna was quite literally a place of perpetual fire. We see a dump filled with so many bodies that the worms would never die from lack of sustenance. The valley contained so much trash that the bodies would burn perpetually with virtually no end.