Sifrei Devarim 20

¹(Devarim 1:22) "And all of you drew near to me": promiscuously. And elsewhere it is written ( Ibid . 5:26) "And you approached me (deferentially), all the heads of your tribes and your elders." The young honored the elders, and the elders honored the heads. And here it is written "And all of you drew near to me and you said" — promiscuously, the young pushing the elders, and the elders pushing the heads. ²"and you said: Let us send out men before us and let them spy out the land for us": R. Shimon says: This was a great shame for Israel. When they said: "Let us send out men before us," the L-rd said to them: When you were in the land of deserts and pits, I fed and sustained you, how much more so when you come to a good and broad land! How shameful those men who thus asked for themselves! ³"and let them return to us word": concerning which language they speak. ⁴"the (straightest) way by which we should go up": There is no road without turnings; there is no road without traps; there is no road without branchings. ⁵"and the cities to which we will come": so that we know by which city to come against them.