GEN1303 [lit., “See the son”] – What is signified by the name “Reuven”?   Leah said: “See the difference between my son and the son [Esau] of my father –in-law [Isaac.]   For the son of my father-in-law, though he sold his birthright willingly, it is written about him Genesis 27:41: ‘And Esau hated Jacob,’ whereas my son, though Joseph forcibly took the birthright from him, as it is written I Chronicles 5:1: ‘But since he defiled his father’s bed, his birthright was given to the sons of Joseph’ – still, he was not envious of him, as it is written Genesis 37:21: ‘And Reuven heard, and he rescued him [Joseph] from their hands’ Berachot 7b TEMIMAH-GEN 132