Numbers 13:22
“And they ascended by the south, and came unto Hebron; where Ahiman, Sheshai, and Talmai, the children of Anak, were. (Now Hebron was built seven years before Zoan in Egypt.)”
And what the land is, whether it be fat or lean, whether there be wood therein, or not. And be ye of good courage, and bring of the fruit of the land. Now the time was the time of the firstripe grapes.
So they went up, and searched the land from the wilderness of Zin unto Rehob, as men come to Hamath.
And they ascended by the south, and came unto Hebron; where Ahiman, Sheshai, and Talmai, the children of Anak, were. (Now Hebron was built seven years before Zoan in Egypt.)
And they came unto the brook of Eshcol, and cut down from thence a branch with one cluster of grapes, and they bare it between two upon a staff; and they brought of the pomegranates, and of the figs.
The place was called the brook Eshcol, because of the cluster of grapes which the children of Israel cut down from thence.
Counter-Arguments
The strongest case that this verse does not belong in this theme.

Cross-References
“Marvellous things did he in the sight of their fathers, in the land of Egypt, in the field of Zoan.”
“And he said to him, Go, I pray thee, see whether it be well with thy brethren, and well with the flocks; and bring me word again. So he sent him out of the vale of Hebron, and he came to Shechem.”
“Thus they gave to the children of Aaron the priest Hebron with her suburbs, to be a city of refuge for the slayer; and Libnah with her suburbs,”
“Then Abram removed his tent, and came and dwelt in the plain of Mamre, which is in Hebron, and built there an altar unto the Lord.”
“The princes of Zoan are become fools, the princes of Noph are deceived; they have also seduced Egypt, even they that are the stay of the tribes thereof.”