“Onkelos then went and raised J the Nazarene from the grave through necromancy. Onkelos said to him: Who is most important in that world where you are now? J said to him: The Jewish people. Onkelos asked him: Should I then attach myself to them in this world? J said to him: Their welfare you shall seek, their misfortune you shall not seek, for anyone who touches them is regarded as if he were touching the apple of his eye.
Onkelos said to him: What is the punishment of that man, a euphemism for J himself, in the next world? J said to him: He is punished with boiling excrement. As the Master said: Anyone who mocks the words of the Sages will be sentenced to boiling excrement. And this was his sin, as he mocked the words of the Sages. The Gemara comments: Come and see the difference between the sinners of Israel and the prophets of the nations of the world. As Balaam, who was a prophet, wished Israel harm, whereas J the Nazarene, who was a Jewish sinner, sought their well-being.”
Translation from Sefaria.