I will grant that Heaven and Hell are not mentioned but the concept of punishment in a hot place and reward in a good place is there in the story.
Reward and punishment are spoken about throughout the Bible without heaven or hell being mentioned.
When Israel obeyed their Creator and kept a strict watch on their worship so as not to introduce anything foreign from the pagan nations around them, they were blessed and prospered....BUT, when they strayed and adopted religious practices that God forbade, he punished then, sometimes very severely. Their captivity in Babylon was one such time. When the older generation who had incurred God's disfavor died out, a new generation was repatriated back to their homeland and a rebuilding work commenced. It didn't really go to plan initially but eventually it did and the temple and city were rebuilt.
Israel were never good at honoring their covenant with Jehovah on a long term basis....but he always kept to his part of the bargain....and after many events of punishment and repentance, his Messiah finally arrived at the appointed time. After being given first opportunity to become disciples of the Christ, the nation as a whole rejected their Messiah and was thereafter rejected by God, who chose a new nation of 'spiritual' Israel. (Galatians 6:16; Matthew 23:37-39) This new nation was made up of both Jews and Gentiles who accepted Jesus as the Savior sent by God to redeem faithful humans.
It was Jesus' words to the Pharisees about "gehenna" that sparked the notion of a fiery destination after death....but Jesus never intended that his words be taken literally.
When you have translators who render various Bible words as "hell", you come to see that inaccurate translation has been used to perpetuate a lie.....firstly that there is life immediately after death by some shadowy conscious part of humans that separates from the body at death (not a Jewish teaching) and secondly that those in "gehenna" (hell) are enduring sever pain consciously in a place of eternal suffering.
Ecclesiastes reveals that the dead are in an unconscious state. So do the Psalms. (Ecclesiastes 9:5-6, 10; Psalm 146:4; Psalm 115:17) The grave is a place where there is no activity, planning, wisdom, or even any emotions. It is a place of silence. Nowhere in scripture is there mention of an immortal soul. Souls die. (Ezekiel 18:4) Living, breathing creatures are souls. the word never means a disembodied spirit.
When the context of Heaven and Hell is considered this appears to fall within that context. So my question for you is what do you view the torment as and what is it like in the bosom of Abraham?
A person can only be tormented whilst still alive, so the torment that Jesus caused the Pharisees made them 'weep and gnash their teeth' at him because he exposed them as hypocritical frauds. He condemned them to "gehenna" not "hell".
The "bosom of Abraham" was the position of favor with God. The Pharisees lost it....the spiritual "beggars" whom the Pharisees treated with contempt, as unworthy of their attention, gained God's favor by accepting Jesus as Messiah....they changed places. What greater reason could there be for their murderous anger? The despised "lost sheep" were being fed by the Fine Shepherd and led out of that contaminated pen and into a clean one, with bountiful supplies of good healthy "food".
Gehenna was the Valley of Hinnom, Jerusalem's rubbish dump just outside the city walls where the carcasses of dead animals and the bodies of executed criminals were often cast into the flames for disposal. The fires of gehenna were kept burning day and night by the addition of brimstone (sulfur). The thought conveyed by this was that the ones who ended up in gehenna were not worthy of a decent burial and therefore not worthy of a resurrection. Having no tomb, or remains to bury, these ones, it was assumed, would be forgotten by God in the resurrection. It was symbolic of eternal death, not eternal suffering. Souls are "destroyed" in gehenna....not tortured. (Matthew 10:28)
The Valley of Hinnom was the place where apostate Israel conducted the heinous practice of child sacrifice to a foreign god. How did God respond to their activities?....
Jeremiah 7:30-31...
"‘For the people of Judah have done what is bad in my eyes,’ declares Jehovah. ‘They have set up their disgusting idols in the house that bears my name, in order to defile it. 31 They have built the high places of Toʹpheth, which is in the Valley of the Son of Hinʹnom, in order to burn their sons and their daughters in the fire, something that I had not commanded and that had never even come into my heart.’"
If God thought burning your children in a fire was 'bad in his eyes', then why would he do that to his own children?
The scriptures tell us that God only rewards the righteous with everlasting life......but the wicked will "perish".
In order to punish the wicked forever, God would also have to grant them everlasting life because only the living can suffer. If one perishes, they are wiped out of existence. Gehenna is eternal death...the very opposite of eternal life.
That is how I understand the scriptures.