Until he was seventeen years old, Joseph frequented the Bet ha-Midrash, and he became so learned that he could impart to his brethren the Halakot he had heard from his father, and in this way he may be regarded as their teacher. He did not stop at formal instruction, he also tried to give them good counsel, and he became the favorite of the sons of the handmaids, who would kiss and embrace him.

In spite of his scholarship there was something boyish about Joseph. He painted his eyes, dressed his hair carefully, and walked with a mincing step. These foibles of youth were not so deplorable as his habit of bringing evil reports of his brethren to his father. He accused them of treating the beasts under their care with cruelty--he said that they ate flesh torn from a living animal--and he charged them with casting their eyes upon the daughters of the Canaanites, and giving contemptuous treatment to the sons of the handmaids Bilhah and Zilpah, whom they called slaves.