לַמָּק֣וֹם הַה֔וּא קָרָ֖א נַ֣חַל אֶשְׁכּ֑וֹל עַ֚ל אֹד֣וֹת הָֽאֶשְׁכּ֔וֹל אֲשֶׁר־כָּרְת֥וּ מִשָּׁ֖ם בְּנֵ֥י יִשְׂרָאֵֽל׃
That place was called the valley of Eshcol, because of the cluster which the children of Israel cut down from thence.—
Read kabbalistic (mystical) interpretation of Numbers 13:24: and classical mystical sources.