Kabbalah sa Isaias 66:24: Zohar & Reshit Chokhmah

for on every Ammonite sword was engraved a crooked serpent, the image of a dragon, which was their god. Said the Holy One to David: “Thou hast imparted strength to that abomination”; for when the sons of Ammon had killed Uriah and many other Israelites, and the sword of Ammon prevailed, it was as if the pagan god prevailed against the God of Israel.

Said Rabbi Yehoshua ben Levi: One time, I walked on the road and I found Elijah the Prophet, his memory for blessing. He said to me: Is it your desire that I place you at the gate of Gehinnom? I said to him: Yes. He showed me humans that were hanging by their noses and humans that were hanging by their hands and humans that were hanging by their tongues and humans that were hanging by their legs, and he showed me women that were hanging by their breasts, and he showed me humans that were hanging by their eyes, and he showed me humans to whom they were feeding their flesh and humans to whom they were feeding hot coals of broom-wood and humans sitting alive and worms were eating them. He said to me: These are the ones that about them it is written "For their worm shall not die." (Isaiah 66:24). And he showed me humans to whom they were feeding fine sand, and they were feeding them against their will and their teeth were breaking, and the Holy One Blessed Is He was saying to them: Evil ones, when you ate stolen [food], it was sweet in your mouths, and now there isn't within you the strength to eat, to fulfill that which is said: "You break the teeth of the wicked." (Psalms 3:8).