וְשִׁנַּנְתָּ֣ם לְבָנֶ֔יךָ וְדִבַּרְתָּ֖ בָּ֑ם בְּשִׁבְתְּךָ֤ בְּבֵיתֶ֙ךָ֙ וּבְלֶכְתְּךָ֣ בַדֶּ֔רֶךְ וּֽבְשָׁכְבְּךָ֖ וּבְקוּמֶֽךָ׃
Y se <span class="x" onmousemove="Show('perush','Este es el <b>11mo Precepto Positivo</b> enumerado por el Rambam en el Prefacio a Mishné Torá. Él también explica la frase <b>“וְשִׁנַּנְתָּם לְבָנֶיךָ”</b> en el <b>1º Capítulo</b> de Las Leyes del Estudio de la Torá.',event);" onmouseout="Close();">las enseñarás</span> a tus hijos, <span class="x" onmousemove="Show('perush','Este es el <b>10mo Precepto Positivo</b> enumerado por el Rambam en el Prefacio a Mishné Torá, su “Compendio de la Ley Hebrea” para todo el Pueblo de Israel.',event);" onmouseout="Close();">y hablarás de ellas</span> estando en tu casa, y andando por el camino, <span class="x" onmousemove="Show('perush','Este es el <b>10mo Precepto Positivo</b> enumerado por el Rambam en el Prefacio a Mishné Torá, su “Compendio de la Ley Hebrea” para todo el Pueblo de Israel.',event);" onmouseout="Close();">y al acostarte, y cuando te levantes</span>:
Jerusalem Talmud Berakhot
Today, no Cohen may eat any Terumah and the minimal amount set apart for Terumah must be burned; it is ritually unclean from the start since nowadays everybody is defiled by the impurity of dead bodies. That impurity can be removed only by sprinkling with water treated with the ashes of the Red Heifer (Num. 19). The Mishnah was edited approximately between 200 and 220 C. E. It must be assumed that the rules of the Mishnah are intended to be practical. It follows that 130 years after the destruction of the Temple there were still places in Israel where the Cohanim could purify themselves by the ashes of the Red Heifer (in Galilee which was only minimally damaged by the two wars with the Romans.), until the end of the first night watch4The night is divided either into three (Babylonian) or four (Roman) watches. are the words of Rebbi Eliezer5The name of R. Eliezer is attached only to the statement about the night watch. The start of the time of the evening Shema is accepted by everybody. Rebbi Eliezer ben Hyrcanus was one of the foremost students of Rabban Yoḥanan ben Zakkai, the founder of the Synhedrion of Jabneh after the destruction of the Temple. He was the most conservative of all teachers of his time and reputed to transmit old traditions most reliably.. But the Sages say until midnight. Rabban Gamliel says until the first sign of dawn6It will be seen that the difference between Rabban Gamliel and the other sages is practical rather than theoretical. They agree that “when you are lying down” means “all the time that you are lying on your bed” and not “when you are ready to go to bed”. The latter interpretation is that of R. Eliezer..
It happened that his (Rabban Gamliel’s) sons returned from a wedding feast and told him: We did not recite the Shema‘. He said to them: If dawn has not yet come then you are obligated to recite.
Not only that, but everywhere the Sages said “until midnight”, the obligation is to the start of dawn. The obligation of burning fats and limbs on the altar [and eating of the Passover sacrifice] is until the start of dawn.134This entire Mishnah, and the following one, are still the words of Rabban Gamliel. In the Venice print and the Leyden manuscript, the Passover sacrifice is not mentioned in the Mishnah preceding the chapter but it is in the Mishnah repeated before the Halakhah. The Biblical precept is to burn the remaining parts of the sacrifices on the altar “the entire night until morning” (Lev. 6:1).
In the interpretation of the Mishnah, there is a fundamental disagreement between Rashi and Maimonides. Rashi (Berakhot 2a, s. v. להרחיק) כדי writes: “Concerning burning of the fats, the Sages did not restrict it to ‘until midnight’ at all and it is mentioned here only to emphasize that everything that has to be done in the night is kasher the entire night.” Maimonides, in his commentary on the Mishnah, writes: “They said about all of these activities ‘until midnight’, even though there would be time until the first signs of dawn, as a ‘fence’ that no one should come to act under pressure and prolong his actions until after the start of dawn; that is what they said ‘In order to remove people from sin.’ ” And he formulates this in his code (Maäse haqorbanot 4:2): “In order to avoid wilful transgression, the Sages said to bring to the altar the parts that have to be burned only until midnight.”
Neither the Yerushalmi nor the Babli discuss the burning of sacrifices during the night. However, as Rebbi Ḥuna points out in the following paragraph, in his opinion the entire discussion in the Mishnah is about Rabbinic precepts, rather than Biblical commandments. This is compatible only with the point of view of Maimonides. It is a well known principle that Maimonides follows the Yerushalmi in all points in which there is no contrary opinion indicated in the Babli; he will take the silence of the Babli in this matter as an endorsement of the interpretation of the Yerushalmi.
All sacrifices that can be eaten during one full day only could be eaten until the first dawn. In that case, why did the Sages say, only until midnight? In order to remove people from sin.