Devarim (Deuteronomy) Chapter 31

4God will do to them as He did to the Amorite kings Sichon and Og, and to the people of their land, whom He destroyed.   דוְעָשָׂ֤ה יְהֹוָה֙ לָהֶ֔ם כַּֽאֲשֶׁ֣ר עָשָׂ֗ה לְסִיח֥וֹן וּלְע֛וֹג מַלְכֵ֥י הָֽאֱמֹרִ֖י וּלְאַרְצָ֑ם אֲשֶׁ֥ר הִשְׁמִ֖יד אֹתָֽם:
5When God delivers them before you, you must do to them in accordance with all the commandments that I have commanded you concerning them.   הוּנְתָנָ֥ם יְהֹוָ֖ה לִפְנֵיכֶ֑ם וַֽעֲשִׂיתֶ֣ם לָהֶ֔ם כְּכָ֨ל־הַמִּצְוָ֔ה אֲשֶׁ֥ר צִוִּ֖יתִי אֶתְכֶֽם:
6Be strong and courageous! Neither fear nor be discouraged because of them, for God, your God—He is the one who is accompanying you. He will neither fail you nor forsake you.”   וחִזְק֣וּ וְאִמְצ֔וּ אַל־תִּֽירְא֥וּ וְאַל־תַּֽעַרְצ֖וּ מִפְּנֵיהֶ֑ם כִּ֣י | יְהֹוָ֣ה אֱלֹהֶ֗יךָ ה֚וּא הַֽהֹלֵ֣ךְ עִמָּ֔ךְ לֹ֥א יַרְפְּךָ֖ וְלֹ֥א יַֽעַזְבֶֽךָּ:
לֹא יַרְפְּךָ - means: He will not allow you to slip, being abandoned by Him.   לֹא יַרְפְּךָ.  לֹא יִתֵּן לְךָ רִפְיוֹן לִהְיוֹת נֶעֱזָב מִמֶּנּוּ: