The exegesis from the Scriptures from that post were way out of proper context.
Obviously the burning bush (Ex 3), that did not burn up, was never meant to tell us what Hell is like. It was God's message so why would He be talking from Hell's fire? Doesn't make any sense, right off the bat. Plus, ToB references it to "prove" Hell is eternal yet misses the obvious fact that the bush is no longer burning today even though he capitalized "not consumed". It's not still burning!
Is 13:8 is not talking about Hell, post judgment. It's talking about Babylon's destruction B. C. Even if it were a foreshadowing of Hell, those people are dead and the city destroyed.
Psalm 116 is contrasting joy with pain , life with death. It never defines eternal torment in Hell. If anything it says Sheol is death. But the verse ToB references is talking about David fearing death, that's prior to the judgment. So it tells us nothing about the eternal torment of humans in Hell (your OP question).
Psalm 116 I love the Lord, because he has heard
my voice and my pleas for mercy.
2 Because he inclined his ear to me,
therefore I will call on him as long as I live.
3 The snares of death encompassed me;
the pangs of Sheol laid hold on me;
I suffered distress and anguish.
4 Then I called on the name of the Lord:
“O Lord, I pray, deliver my soul!â€
5 Gracious is the Lord, and righteous;
HELL'S FIRST MOMENT.... THROUGHOUT ETERNITY
Exodus 3:2 The angel of the Lord appeared unto him in a flame of fire out of the midst of a bush: and he looked and behold, the bush burned with fire and the bush was NOT CONSUMED.
Isaiah 13:8 They shall be afraid: pangs and sorrows shall take hold of them; they shall be in pain as a woman that travaileth; they shall be amazed one at another; their faces shall be as flames.
Psalms 116:3 The sorrows of death compassed me, and pains of hell gat hold upon me, I found trouble and sorrow.
]