Deuteronomy 1:24

And they turned and went up into the mountain, and came unto the valley of Eshcol, and searched it out.

Cross-reference

Numbers 13:21-27 describes the spies exploring the Valley of Eshcol and bringing back fruit, matching the journey in this verse.

Numbers 13:23 describes cutting the grape cluster from the Valley of Eshcol, the same location and event mentioned here.

Numbers 32:9 recalls that same spying trip and how it discouraged the people, directly echoing this verse.