Rashi, on Isa 17:5

“And it shall be as when one gathereth in the harvest that which remaineth, and his arm shall gather the ears of corn: and it shall be as he that seeketh ears in the vale of Raphaim.”

“And it shall be like gathering the harvest of the standing grain Just as at the time of the harvest, the reaper gathers the bundle of the standing grain in his one hand and with his other arm he reaps the ears, so will Sennacherib uproot and exile everyone, and even the gleanings that fall at the time of harvest he will gather and carry it off. That is to say that even those who flee will not escape his hand, and they will gather them [var. and he will gather them] [like one who gathers ears]. in the valley of Rephaim That is the valley that is before Jerusalem. In the Book of Joshua (15:8, 18:16) you will find that the valley of Rephaim adjoins Jerusalem.”

Imported from an open dataset — not yet checked against the printed edition.