לַמָּק֣וֹם הַה֔וּא קָרָ֖א נַ֣חַל אֶשְׁכּ֑וֹל עַ֚ל אֹד֣וֹת הָֽאֶשְׁכּ֔וֹל אֲשֶׁר־כָּרְת֥וּ מִשָּׁ֖ם בְּנֵ֥י יִשְׂרָאֵֽל׃
이스라엘 자손이 거기서 포도송이를 벤 고로 그 곳을 에스골 골짜기라 칭하였더라
Bamidbar Rabbah
16 (Numb. 13:24) “That place was called Wadi Eshcol”: This text is related (to Is. 46:10), “Declaring the end from the beginning, and from of old, things that have not yet happened,” in that everything is foreseen by the Holy One, blessed be He. Eshcol (according to Gen. 14:24) was Abraham's friend, and he was called Eshcol because of the grape cluster (eshkol), which Israel was going to cut from his place.
Sifrei Devarim
"and they came to the river-bed of Eshkol": so-called by reason of the cluster (eshkol) of grapes (that they were to take from there [viz. Bamidbar 13:24]) Similarly, (Shemoth 3:1) "and he came to the mountain of G-d to Chorev": so-called because of what would occur there in the future.