(Devarim 1:5) "Across the Jordan, in the land of Moav, Moses ho'il (began) to explain": "hoalah" is "beginning," as in (Judges 19:6) "Begin ("hoel") now and stay overnight so that you will be refreshed," and (I Chronicles 17:27) "and now you have begun ("hoalta") to bless the house of your servant to be before You forever." And the sages say: "hoalah" is "swearing," as in (Shemoth 2:21) "And Moses swore ("vayoel") to remain with the man," and (I Samuel 14:24) "And Saul beswore ("vayoel") the people, saying 'Cursed be the man who will eat bread until the evening when I will be avenged of my enemies.'"
(Devarim, Ibid.) "to explain this Torah, saying": He said to them: I am about to die. Anyone who heard one verse and forgot it, let him come and review it. Anyone who heard one section and forgot it let him come and review it and understand it. This is the intent of "to explain this Torah."
(דברים א ה) בְּעֵבֶר הַיַּרְדֵּן בְּאֶרֶץ מוֹאָב הוֹאִיל מֹשֶׁה בֵּאֵר רַבִּי יְהוּדָה אוֹמֵר: אֵין הוֹאָלָה אֶלָּא הַתְחָלָה, שֶׁנֶּאֱמַר (שופטים יט ו): ״הוֹאֶל נָא וְלִין וְיִיטַב לִבֶּךָ״, וְאוֹמֵר (דברי הימים א יז כז): ״וְעַתָּה הוֹאַלְתָּ לְבָרֵךְ אֶת בֵּית עַבְדְּךָ לִהְיוֹת לְעוֹלָם לְפָנֶיךָ״. וַחֲכָמִים אוֹמְרִים: אֵין הוֹאָלָה אֶלָּא שְׁבוּעָה, שֶׁנֶּאֱמַר (שמות ב כא): ״וַיּוֹאֶל מֹשֶׁה לָשֶׁבֶת אֶת הָאִישׁ״, וְאוֹמֵר (שמואל א יד כד): ״וַיֹּאֶל שָׁאוּל אֶת הָעָם לֵאמֹר״.
(Devarim 1:5) "Across the Jordan, in the land of Moav, Moses ho'il (began) to explain": "hoalah" is "beginning," as in (Judges 19:6) "Begin ("hoel") now and stay overnight so that you will be refreshed," and (I Chronicles 17:27) "and now you have begun ("hoalta") to bless the house of your servant to be before You forever." And the sages say: "hoalah" is "swearing," as in (Shemoth 2:21) "And Moses swore ("vayoel") to remain with the man," and (I Samuel 14:24) "And Saul beswore ("vayoel") the people, saying 'Cursed be the man who will eat bread until the evening when I will be avenged of my enemies.'"
בֵּאֵר אֶת הַתּוֹרָה הַזֹּאת לֵאמֹר, אָמַר לָהֶם: כְּבָר אֲנִי סָמוּךְ לַמִּיתָה. מִי שֶׁשָּׁמַע פָּסוּק אֶחָד וּשְׁכָחוֹ – יָבוֹא וְיִשְׁנֶנּוּ, פָּרָשָׁה אַחַת וּשְׁכָחָהּ – יָבוֹא וְיִשְׁנֶנָּה, פֶּרֶק אֶחָד וּשְׁכָחוֹ – יָבֹא וְיִשְׁנֶנּוּ, הֲלָכָה אַחַת וּשְׁכָחָהּ – יָבֹא וְיִשְׁנֶנָּה. לְכָךְ נֶאֱמַר בֵּאֵר אֶת הַתּוֹרָה הַזֹּאת לֵאמֹר.
(Devarim, Ibid.) "to explain this Torah, saying": He said to them: I am about to die. Anyone who heard one verse and forgot it, let him come and review it. Anyone who heard one section and forgot it let him come and review it and understand it. This is the intent of "to explain this Torah."