בבאכם אל הארץ. מְשֻׁנָּה בִּיאָה זוֹ מִכָּל בִּיאוֹת שֶׁבַּתּוֹרָה, שֶׁבְּכֻלָּן נֶאֱמַר כִּי תָבֹא, כִּי תָבֹאוּ, לְפִיכָךְ כֻּלָּן לְמֵדוֹת זוֹ מִזּוֹ, וְכֵיוָן שֶׁפֵּרֵט לְךָ הַכָּתוּב בְּאַחַת מֵהֶן שֶׁאֵינָהּ אֶלָּא לְאַחַר יְרֻשָּׁה וִישִׁיבָה, אַף כֻּלָּן כֵּן, אֲבָל זוֹ נֶאֱמַר בָּהּ "בְּבֹאֲכֶם" — מִשֶּׁנִּכְנְסוּ בָהּ וְאָכְלוּ מִלַּחְמָהּ נִתְחַיְּבוּ בְחַלָּה (ספרי): בבאכם אל הארץ WHEN YE COME (more lit., on your coming) INTO THE LAND — This statement about their “entering” into the land is expressed differently from all other statements about their “entering” made in the Torah, for in all other cases it is said, “When you come”, or “when ye come”, — and consequently in all these latter cases each may learn some particular from the other by way of a ג”ש. Therefore, since Scripture distinctly states in one instance of these (Deuteronomy 26:1) that the law there enjoined is applicable only after the full possession (ירושה) of, and definite settlement (ישיבה) in it, (“When thou comest to the land … and thou dost possess it (וירשת) and thou dwellest (וישבת) therein”, then thou shalt take of the first of all thy fruits etc.), all other cases where the phrase כי תבא or כי תבאו introduce a law are similar (i.e. the laws laid down in such instances were also to come in force only after ירושה and ישיבה). — In this case, however, it is stated בבאכם “on your coming”, implying that as soon as they had entered it (the Land) and ate of its bread they became subject to the law about “Challah” (Sifrei Bamidbar 110:1).