Numbers 13 (NASB)
1  Then the LORD spoke to Moses, saying, 2  “Send out men for
yourself to spy out the land of Canaan, which I am going to give
the sons of Israel; you shall send a man from each of their
fathers’ tribes, every one a leader among them.” 3  So Moses
sent them from the wilderness of Paran at the command of the
LORD, all of them men who were heads of the sons of Israel.  

17  When Moses sent them to spy out the land of Canaan, he said
to them, “Go up there into the Negev; then go up into the hill
country. 18  See what the land is like, and whether the people
who live in it are strong or weak, whether they are few or
many. 19  And how is the land in which they live, is it good or
bad? And how are the cities in which they live, are the people in
open camps or in fortifications? 20  And how is the land, is it
productive or unproductive? Are there trees in it or not? And
show yourselves courageous and get some of the fruit of the
land.” Now the time was the season of the first ripe grapes.

21  So they went up and spied out the land from the wilderness of
Zin as far as Rehob, at Lebo-hamath. 22  When they had gone up
into the Negev, they came to Hebron where Ahiman, Sheshai,
and Talmai, the descendants of Anak were. (Hebron was built
seven years before Zoan in Egypt.)

23  Then they came to the Valley of Eshcol, and from there they
cut off a branch with a single cluster of grapes; and they carried
it on a pole between two men, with some of the pomegranates
and the figs. 24  That place was called the Valley of Eshcol, because of the cluster which the sons of Israel cut off from there.

25  When they returned from spying out the land, at the end of
forty days, 26  they went on and came to Moses and Aaron and to
all the congregation of the sons of Israel, in the wilderness of
Paran at Kadesh; and they brought back word to them and to
all the congregation, and showed them the fruit of the land.
27  So they reported to him and said, “We came into the land
where you sent us, and it certainly does flow with milk and
honey, and this is its fruit. 28  Nevertheless, the people who live
in the land are strong, and the cities are fortified and very large.
And indeed, we saw the descendants of Anak there! 29  Amalek is
living in the land of the Negev, the Hittites, the Jebusites, and
the Amorites are living in the hill country, and the Canaanites
are living by the sea and by the side of the Jordan.”

30  Then Caleb quieted the people before Moses and said, “We
should by all means go up and take possession of it, for we will
certainly prevail over it.”

31  But the men who had gone up with him said, “We are not
able to go up against the people, because they are too strong
for us.” 32  So they brought a bad report of the land which they
had spied out to the sons of Israel, saying, “The land through
which we have gone to spy out is a land that devours its
inhabitants; and all the people whom we saw in it are people of
great stature. 33  We also saw the Nephilim there (the sons of
Anak are part of the Nephilim); and we were like grasshoppers
in our own sight, and so we were in their sight.”