In the Bible, Joseph was a son of Jacob. Joseph's brothers hated him, because he was their father's favorite son, and his father gave him a coat which was said that it was revealed from heaven. One day they decided to kill him but changed their minds. According to Genesis they sold him as a slave. In Islamic tradition they threw him in a large well that had only a little salt water but when he drank it, by the will of God, it was very sweet. A passing caravan found him and took him as a slave to Egypt.