.....And I also provided archaeological evidence that Gehenna was never an constantly burning trash dump. There was such a dump outside Jerusalem it was the Kidron valley which was south of the temple and Gehenna valley.
Mazel Tov. Because it does not matter. There are those who believe they have archeological evidence that a fire burned there in the days of Jesus. But it does not matter - because Gehenna was in Jerusalem and became a symbol of everlasting punishment in sheol/hades, the abode of the dead (which was not in Jerusalem).
Samuel was also in sheol/hades when king Saul got the medium to bring him up, but Samuel was not experiencing everlasting punishment/Gehenna in sheol/hades.
You have conflated two different concepts, and the facts in the encyclopedias which you mentioned are irrefutable proof that Gehenna (everlasting punishment) and sheol/hades are not the same concept. One is the abode of the dead, the other is a place in Jerusalem which symbolizes everlasting punishment.
Death and hades/the abode of the dead are the two sides of the same coin. It's THE SAME coin.
At the GWT, Jesus has revealed that death and hades will deliver up the dead in them and all whose names are not found in the book of Life will be cast into the lake of fire together with death and hades and there will be no more death after that, so hades will be empty (that's the Lord's Revelation, not mine).
I appreciate everything you are saying but you have come to the wrong conclusions based on the facts you gave because you are mixing up different concepts - conflating sheol/hades with the concept of eternal punishment/Gehenna.
In the New Testament:
"HELL":
The New Testament was originally written in Greek, and translated into many other languages. The word "hell" does not appear in the New Testament's original language. There are three words which appear:
1. Gehenna, which Jesus used
as a metaphor for everlasting punishment.
2. Hades, which in the Greek version of the Old Testament (the Septuaginta) always referred to the abode of the dead, and was a translation of the Hebrew word sheol.
3. Tartarus - the bottomless pit - only mentioned once by Peter (2 Peter 2:4).
4. Jesus also makes reference in a parable to "Abraham's bosom" where quite obviously the departed souls of the dead went who had like-faith in the Word of God that Abraham had, and that Noah had before him, and that Seth and the sons of Seth had before Noah.
Jesus spoke of a chasm between those in Abraham's bosom and hades, but there is no clear indication in the New Testament of whether the abode of the dead (hades) was divided into different sections separated by chasms, or if there were different abodes of the dead.
LAKE OF FIRE
In His revelation to His servants given to His apostle John, Jesus gives John a vision of a Great White Throne and books being opened. At this point hades and death deliver up all the souls in them and whoever's name was not found in the Book of Life (through faith in Jesus) are cast into the lake of fire. Death and hades, too, are cast into the lake of fire and there is no more dying after that, no more death.