Halakhah sobre Deuteronómio 6:9

Gates opening into courtyards and alleyways and cities and provinces, are required to have mezuzos, as it is said: "In your gateways."¹Deuteronomy 6:9.

Several Responsa serve as precedents for asserting that a man followed his regular routine.³⁰In addition to the sources that we discuss, see Teshuvot Igrot Moshe (E.H. 1:7). Rav Yitzchak Herzog (Teshuvot Heichal Yitzchak, E.H. 2:9:2) considers the possibility of partially relying on a husband’s patterns to determine that a man was at a particular place where a bridge collapsed into the water.³¹Although a pattern is sometimes called a “chazakah,” it is a very different concept than the chazakah that we mentioned earlier, which referred to the assumption that the status quo has been maintained. He notes that the Taz (Yoreh Deah 69:24) rules that if a woman is unsure if she salted a piece of meat before she cooked it, she may assume that she followed her normal pattern of salting the meat. As a precedent, the Taz cites the Gemara’s ruling (Berachot 16a) that if one is reading the Shema and is unsure if he has read the verse of “Uch’tavtam” from the first section of Shema or the second section, the doubt is resolved if he had begun to read the verse of “L’ma’an yirbu,” which follows “Uch’tavtam” in the second section (see Devarim 6:9 and 11:20-21). Since people normally recite Shema in the proper order, a person may assume that he followed his usual routine and proceeded to the next verse of the second section because he had recited everything until then.

To affix a mezuzah on entrances: To affix a mezuzah on the doorposts of our homes, as it is stated (Deuteronomy 6:9), "And you shall write them on the doorposts of your house and on your gates." And the content of the mezuzah is that we write two sections of the Torah on one parchment - and they are 'Hear Israel,' until 'and in your gates'; [and] 'And it shall be if you listen,' until 'upon the earth.' And we affix them to the doorposts of the opening of the house.

From the laws of the commandment is that which they, may their memories be blessed, said (Sotah 41a, Mishneh Torah, Laws of Festival Offering 3:3) that the king was the one that was obligated to read it in their ears. And he would read it in the women's yard [of the Temple]. And he reads while sitting, but if he read while standing, behold that is praiseworthy. And from where does he read? From the beginning of the book of Eleh HaDevarim (Deuteronomy) until the end of the section of Shema Yisrael (Deuteronomy 6:9), and he skips to Vehaya im shamo'ah and finishes that section (Deuteronomy 11:13-21), and [then] skips to Aser te'aser (Deuteronomy 14:22) and reads from Aser te'aser, according to [its proper] order, until the end of the blessings and curses, up until "besides for the covenant which He made with them in Chorev" (Deuteronomy 28:69), and stops.