Moses sent out 12 spies, one from each tribe.
Caleb and Joshua brought back a good report of the land but, because the other 10 spies brought back a bad report, the people did not want to enter the promised land. As a result, the Israelites stayed another 37 years in the desert before entering the promised land.
Caleb was 40 years old when he went in as one of the 12 spies. Only he and Joshua brought back good reports about the land they had seen.
The report that came back was the food was good but the people that live there now were very tall.
Remember that Abraham, Isaac and Jacob had lived in the land of Canaan over 400 years earlier.
Exploring Canaan by 12 spies
13The LORD said to Moses, 2"Send some men to explore the land of Canaan, which I am giving to the Israelites. From each ancestral tribe send one of its leaders."
3 So at the LORD's command Moses sent them out from the Desert of Paran. All of them were leaders of the Israelites. 4 These are their names:
11 from the tribe of (8)Manasseh (a tribe of Joseph), Gaddi son of Susi; 12 from the tribe of (9)Dan, Ammiel son of Gemalli; 13 from the tribe of (10)Asher, Sethur son of Michael; 14 from the tribe of (11)Naphtali, Nahbi son of Vophsi; 15 from the tribe of (12)Gad, Geuel son of Maki.
16 These are the names of the men Moses sent to explore the land. (Moses gave Hoshea son of Nun the name Joshua.)
17 When Moses sent them to explore Canaan, he said, "Go up through the Negev and on into the hill country. 18 See what the land is like and whether the people who live there are strong or weak, few or many. 19 What kind of land do they live in? Is it good or bad? What kind of towns do they live in? Are they unwalled or fortified? 20How is the soil? Is it fertile or poor? Are there trees on it or not? Do your best to bring back some of the fruit of the land." (It was the season for the first ripe grapes.)
21 So they went up and explored the land from the Desert of Zin as far as Rehob, toward Lebo Hamath. 22 They went up through the Negev and came to Hebron, where Ahiman, Sheshai and Talmai, the descendants of Anak, lived. (Hebron had been built seven years before Zoan in Egypt.) 23 When they reached the Valley of Eshcol, they cut off a branch bearing a single cluster of grapes. Two of them carried it on a pole between them, along with some pomegranates and figs. 24That place was called the Valley of Eshcol because of the cluster of grapes the Israelites cut off there. 25 At the end of forty days they returned from exploring the land.
Report on the Exploration
26 They came back to Moses and Aaron and the whole Israelite community at Kadesh in the Desert of Paran. There they reported to them and to the whole assembly and showed them the fruit of the land.27They gave Moses this account: "We went into the land to which you sent us, and it does flow with milk and honey! Here is its fruit. 28But the people who live there are powerful, and the cities are fortified and very large. We even saw descendants of Anak there. 29 The Amalekites live in the Negev; the Hittites, Jebusites and Amorites live in the hill country; and the Canaanites live near the sea and along the Jordan."
30 Then Caleb silenced the people before Moses and said, "We should go up and take possession of the land, for we can certainly do it."
31 But the men who had gone up with him said, "We can't attack those people; they are stronger than we are." 32 And they spread among the Israelites a bad report about the land they had explored. They said, "The land we explored devours those living in it. All the people we saw there are of great size. 33 We saw the Nephilim there (the descendants of Anak come from the Nephilim). We seemed like grasshoppers in our own eyes, and we looked the same to them."