Genesis 37:2-4

These are the generations of Jacob. J oseph, when he was seventeen years old, was shepherding the flock with his brothers [Dan, Naphtali, Gad, and Asher]; the boy was with the sons of Bilhah and Zilpah, his father’s [secondary] wives; and Joseph brought back a bad report about them to their father. Now Israel (Jacob) loved Joseph more than all his children, because he was the son of his old age; and he made him a [distinctive] multicolored tunic. His brothers saw that their father loved Joseph more than all of his brothers; so they hated him and could not [find it within themselves to] speak to him on friendly terms.