Sibling Rivalry in Genesis

Genesis has several stories of sibling rivalry tied to this, let's say upsetting of the pecking order. Jacob renames Israel and from him will come the 12 tribes of the nation; God never chastises Jacob for doing so. Ruben, who's the eldest son, slept with his father, Jacob's concubine, which is a sign of disrespect. Simeon and Levi, there are two and three in the pecking Order: They tricked and then massacred the Shechemites after their sister had been raped by one of them.