The tribe of Shimon contended against the tribe of Levi: "Would the son (Pinchas) of the daughter of this "fattener" (Yithro, who fattened calves for idolatry) seek to uproot an entire tribe (Shimon) from Israel! Don't we know whose son he is?" When the L-rd saw them cheapening him thus, He began tracing his illustrious lineage, viz. (Bamidbar 25:11) "Pinchas, the son of Elazar, the son of Aaron the Cohein turned My wrath away from the children of Israel" — a Cohein, the son of a Cohein; a zealot, the son of a zealot (Levi, viz. Bereshit 34:25); turner away of wrath, the son of a turner away of wrath (Aaron, viz. Bamidbar 17:13) turned My wrath away from the children of Israel."