Deuteronomy 1:22-24

22 "But you came to me and said, 'Let's send men ahead of us to spy out the land, so that they can tell us the best route to take and what kind of cities are there.'

23 "That seemed like a good thing to do, so I selected twelve men, one from each tribe.

24 They went into the hill country as far as Eshcol Valley and explored it.