Komentarz do Powtórzonego Prawa 11:19

That is that He commanded us to study Torah and to teach it. And that is His saying, "And you shall teach them to your sons" (Deuteronomy 6:4). And it is written in the Sifrei (Sifrei Devarim 34:4), "'To your sons' - these are the students. For students are called, sons, as it is stated, (II Kings 2:3) 'And the sons of the prophets came forth.'" And there (Sifrei Devarim 34:1), it says, "'And you shall teach (shinantam, which is related here to the word, shen, tooth) them' - they shall be sharp in your mouth, so that if one questions you about something, you will not stammer to him, but tell him forthwith." And this command was already repeated several times - "and you shall teach them (and) [to] do them" (Deuteronomy 5:1); "in order that they shall learn" (Deuteronomy 31:12). And the command and the encouragement of this commandment has already been scattered throughout many places in the Talmud. And women are not obligated in it, from His saying, "And you shall teach them to your sons" (Deuteronomy 11:19) - His saying, "your sons," and not, "your daughters," as it is explained in the Gemara (Kiddushin 30a). (See Parashat Vaetchanan; Mishneh Torah, Torah Study 1.)

לדבר בם [AND YE SHALL TEACH THEM UNTO YOUR CHILDREN,] TO SPEAK OF THEM — From the moment when your son knows how to speak, teach him the text (Deuteronomy 33:4) “Moses commanded us the Torah as a possession of the congregation of Jacob” — so that this should be the means of teaching him to speak (Sukkah 42a). From this they (the Rabbis) derived their teaching: When the babe begins to speak, his father should speak with him in the Holy Tongue, and should instruct him in the Torah. If he does not do this, it is as though he buries him, as it is said here, “And ye shall teach them unto your children to speak of them, etc.”,

ולמדתם אותם את בניכם, train your children in the regular performance of the commandments