《Genesis》4:8 And Cain talked with Abel his brother: and it came to pass, when they were in the field, that Cain rose up against Abel his brother, and slew him.
《Matthew》23:35 So that on you may come all the blood of the upright on the earth, from the blood of upright Abel to the blood of Zachariah, son of Barachiah, whom you put to death between the Temple and the altar..
Explain:
Here Jesus hinted that the ancestor of Jews killed Abel, so Cain is the ancestor of Jews.