While the Bible leaves his ancestry largely a mystery, it does record that he fathered 20 or 27 children.  
According to one medieval tradition, he was descended from Cain and was an ancestor of Christ.  While the Bible leaves his ancestry largely a mystery, it does record that he fathered 20 or 27 children.  It is also recorded that his friends included a Temanite, a Shuhite, and a Naamathite.  FTP, name this man who said, "The Lord giveth and the Lord taketh away."
According to one medieval tradition, he was descended from Cain and was an ancestor of Christ.  
Job