Variantly: "And you shall teach (lit., 'repeat') them to your sons." These (sections: Shema [Devarim 6:4-9], Vehaya im shamoa [Ibid. 11-21], and Vayomer [Bamidbar 15:38-41], the section of tzitzith) must be repeated [morning and evening]; and Kadesh li [Shemoth 13:1-10] and Vehaya ki yeviacha [Ibid. 11-16] need not be repeated. For it would follow a fortiori (that they should be repeated), viz.: If (the section of) Vayomer, which is not included in "binding" (i.e., in the compartments of the tefillin) is included in (the mitzvah of) "repetition," then Kadesh li and Vehaya ki yeviacha, which are included in "binding" — how much more so should they be included in "repetition." It is, therefore, written "And you shall repeat them (the aforementioned) to your sons, and not the others.