שמע ישראל. אֲפִלּוּ אֵין בָּכֶם זְכוּת אֶלָּא קְרִיאַת שְׁמַע בִּלְבַד, כְּדַאי אַתֶּם שֶׁיּוֹשִׁיעַ אֶתְכֶם: שמע ישראל [AND HE SHALL SAY UNTO THEM] HEAR O ISRAEL — Even though you have no other merit than the fulfilment of the command of “Reading the Shema” you would deserve that He should help you (Sotah 42a).
על איביכם. אֵין אֵלּוּ אַחֵיכֶם, שֶׁאִם תִּפְּלוּ בְיָדָם אֵינָם מְרַחֲמִים עֲלֵיכֶם, אֵין זוֹ כְּמִלְחֶמֶת יְהוּדָה עִם יִשְׂרָאֵל שֶׁנֶּאֱמַר (דברי הימים ב' כ"ח ט"ו) "וַיָּקֻמוּ הָאֲנָשִׁים אֲשֶׁר נִקְּבוּ בְשֵׁמוֹת וַיַּחֲזִיקוּ בַשִּׁבְיָה וְכָל מַעֲרֻמֵּיהֶם הִלְבִּישׁוּ מִן הַשָּׁלָל וַיַּלְבִּישׁוּם וַיַּנְעִילוּם וַיַּאֲכִילוּם וַיַּשְׁקוּם וַיְסֻכוּם וַיְנַהֲלוּם בַּחֲמֹרִים לְכָל כּוֹשֵׁל וַיְבִיאוּם יְרֵחוֹ עִיר הַתְּמָרִים אֵצֶל אֲחֵיהֶם וַיָּשׁוּבוּ שֹׁמְרוֹן", אֶלָּא עַל אוֹיְבֵיכֶם אַתֶּם הוֹלְכִים, לְפִיכָךְ הִתְחַזְּקוּ לַמִּלְחָמָה (ספרי; סוטה מ"ב): על איבכם [YE APPROACH THIS DAY UNTO WAR] AGAINST YOUR ENEMIES — By these apparently redundant words the priest says, as it were: Remember that these are not your brethren, and if you will fall into their hands they will have no pity on you; — it is not like the war of Judah against Israel of which it states, (II Chronicles 28:15) “And the men which were expressed by name rose up, and took the captives, and with the spoil clothed all that were naked among them, and arrayed them, and shod them, and gave them to eat and to drink, and anointed them, and carried all the feeble of them upon asses, and brought them to Jericho, the city of the palm trees, to their brethren: they returned to Samaria” — it is your enemies against whom you march, therefore show yourselves strong for the battle (Sifrei Devarim 192:2; Sotah 42a).
אל ירך לבבכם אל תיראו ואל תחפזו ואל תערצו. אַרְבַּע אַזְהָרוֹת כְּנֶגֶד אַרְבָּעָה דְבָרִים שֶׁמַּלְכֵי הָאֻמּוֹת עוֹשִׂים, מְגִיפִין בִּתְרִיסֵיהֶם כְּדֵי לְהַקִּישָׁן זֶה לָזֶה כְּדֵי לְהַשְׁמִיעַ קוֹל שֶׁיַּחְפְּזוּ אֵלּוּ שֶׁכְּנֶגְדָן וְיָנוּסוּ, וְרוֹמְסִים בְּסוּסֵיהֶם וּמַצְהִילִין אוֹתָם לְהַשְׁמִיעַ קוֹל שַׁעֲטַת פַּרְסוֹת סוּסֵיהֶם, וְצוֹוְחִין בְּקוֹלָם, וְתוֹקְעִין בַּשּׁוֹפָרוֹת וּמִינֵי מַשְׁמִיעֵי קוֹל: אל ירך לבבכם אל תיראו ואל תחפזו ואל תערצו LET NOT YOUR HEARTS FAINT; FEAR NOT, AND HURRY NOT PRECIPITATELY, NEITHER BE TERRIFIED BECAUSE OF THEM — These are four admonitions corresponding to four things which the kings of the nations do in battle: they bring their shields close together in order to strike them one against the other and thereby make a loud noise so that their opponents should flee precipitately; they trample the ground heavily with their horses — and make them neigh — in order to make a noise through the beating of their horses’ hoofs; they themselves shout aloud and blow trumpets and other noisy instruments.
אל ירך לבבכם. מִצַּהֲלַת סוּסִים: אל ירך לבבכם LET NOT YOUR HEARTS FAINT — through the neighing of the horses,
אל תיראו. מֵהֲגָפַת הַתְּרִיסִין: אל תיראו FEAR NOT from the noise made by the clashing of the shields,
ואל תחפזו. מִקּוֹל הַקְּרָנוֹת: ואל תחפזו AND HURRY NOT PRECIPITATELY at the sounds of the trumpets,
ואל תערצו. מִקּוֹל הַצְּוָחָה (שם): ואל תערצו NEITHER BE TERRIFIED by the noise of the shouting (Sifrei Devarim 192:3; Sotah 42).