And whence is it derived that the sons of Yonadav the son of Rechav are the descendants of Yithro? From (I Chronicles 2:55) "They were the Kenites, who descended from Chamath the father of Rechav." They sought a master and Yaavetz sought disciples, viz. (Ibid. 4:10) "and Yaavetz called out to the G–d of Israel, saying: 'If You bless me and expand my borders, and Your hand be with me and You keep (me) from evil, not to sadden me …' And the L–rd brought what he asked." "If you bless me"—with Torah study.. "and You expand my borders"—with disciples. "and Your hand be with me"—that I not forget my learning. "and You keep (me) from evil"—that You give me friends such as I am. "not to sadden me"—that the evil inclination not keep me from Torah study. "And the L–rd brought what he asked"—He granted him what he asked,