DEVARIM 4

9 Only be shomer over thyself, and be shomer over thy nefesh diligently, lest thou forget the things which thine eyes have seen, and lest they depart from thy lev kol yamim of thy life; but teach them to thy banim, and the banim of thy banim; 10 Specially the yom that thou stoodest before Hashem Eloheicha in Chorev, when Hashem said unto me, Gather Me the people together, and I will make them hear My words, that they may learn to fear Me kol hayamim that they shall live upon ha’adamah and that they may teach their children.