In the biblical Book of Genesis, Cain and Abel are the first two sons of Adam and Eve (let’s not consider the paradox of the incest) .

Cain was a a farmer (a lover of vegetables) and Abel was a shepherd (a lover of meat).

At some point of the story Cain sacrificed to God the fruits of the soil (he picked vegetables for God) and Abel sacrificed to God his flock (slaughtering his animals).

Lord regarded Abel and his offering but did not regard Cain and his offering.

It is crystal clear that Christian (and Jewish) Lord loved blood and meat, and disregarded vegetarians and animalists.

(besides, God seeded Envy with his behavior)

And at that point Cain tried to make justice by himself, killing the bloody Abel, because he understood that the only way to please the Lord was spreading blood.

Indeed the Lord, pleased by the human blood offer, said to Cain “Therefore whoever kills Cain shall suffer sevenfold vengeance.” And the Lord set a mark upon Cain, so that whoever found him would not slay him.

Finally Cain, thanks to the Lord, knew his wife and she conceived and bore Enoch. Then he became the builder and the ruler of a city. He called the name of the city like his son’s name, Enoch.