To gird up one's loins valiantly
Figuratively: to strengthen oneself. To be filled with strength and vigor.
("She girded her loins with strength and strengthened her arms" - Proverbs 17, paraphrase of "The Soldier's Wife")
Translation
Expression (Hebrew)
חָגַר בְּעֹוז מָותְנָיו
Definition (Hebrew)
בִּמְלִיצָה: הִתְחַזֵּק. נִמְלָא כֹּחַ וּמֶרֶץ.
("חָגְרָה בְעוֹז מָתְנֶיהָ וַתְּאַמֵּץ זְרֹעוֹתֶיהָ"- מִשְׁלֵי לֹא יז, תֵּאוּר "אֵשֶׁת הַחַיִל")