Genesis 37:2-4

2These are the generations of Jacob. Joseph, being seventeen years old, fed the flock with his brethren; and he was doing service with the sons of Bilhah, and with the sons of Zilpah, his father's wives. And Joseph brought to his father an evil report of them.

3And Israel loved Joseph more than all his sons, because he was son of his old age; and he made him a vest of many colours.

4And his brethren saw that their father loved him more than all his brethren, and they hated him, and could not greet him with friendliness.