וַיֹּ֙אמֶר֙ לְאַנְשֵׁ֣י סֻכּ֔וֹת תְּנוּ־נָא֙ כִּכְּר֣וֹת לֶ֔חֶם לָעָ֖ם אֲשֶׁ֣ר בְּרַגְלָ֑י כִּי־עֲיֵפִ֣ים הֵ֔ם וְאָנֹכִ֗י רֹדֵ֛ף אַחֲרֵ֛י זֶ֥בַח וְצַלְמֻנָּ֖ע מַלְכֵ֥י מִדְיָֽן׃
et il dit aux gens de Souccot: "Donnez donc quelques pains à cette troupe qui me suit; car ils sont harassés, et je poursuis avec eux Zébah et Çalmounna, rois de Madian."
Metzudat David
And he went up: He brought up ten thousand to Mount Tabor, etc. - in that they went up after him, as in (Judges 8:4), "for the nation that is behind [me]" (literally, "at my feet," like here).
Rashi
לרגלי SINCE MY COMING — The word is the same as עם רגלי “with my coming” (lit, with my foot)— on account of my coming has the blessing come to you (Genesis Rabbah 73:8). Similar is (Exodus 11:8) “And all the people that come with thee (ברגלך)”, and (Judges 8:5) “and the people that are ברגלי” — ie. that are coming with me.