Midras Nehemia 9:17: Mekhilta DeRabbi Yishmael, Midrash Tanchuma, Midrash Tanchuma Buber & Bamidbar Rabbah

R. Eliezer says: They journeyed by the word, for thus do we find in two or three places. What, then, is the intent of "And Moses made Israel journey?" He did so against their will, with the rod. For when they saw the bodies of the men who had enslaved them with (back-) breaking labor, all lifeless corpses at the edge of the sea, they said: Apparently, not a man remains in Egypt (Numbers 14:4) "Let us make a leader and return to Egypt" and make an idolatry for ourselves to rule over us — and let us return to Egypt. One might think that they merely spoke thus, but did not do. It is, therefore, written (Nechemiah 9:17) "And they refused to hearken, and they did not remember Your wonders that You wrought for them. And they stiffened their necks, and they appointed a leader to return to their work. But You are the G–d of forgiveness, gracious and merciful, withholding wrath and abundant in lovingkindness, and You did not forsake them." And it is written (Ibid. 18) "And even when they made a golden calf, etc."

R. Eliezer says: They journeyed by the word, for thus do we find in two or three places. What, then, is the intent of "And Moses made Israel journey?" He did so against their will, with the rod. For when they saw the bodies of the men who had enslaved them with (back-) breaking labor, all lifeless corpses at the edge of the sea, they said: Apparently, not a man remains in Egypt (Numbers 14:4) "Let us make a leader and return to Egypt" and make an idolatry for ourselves to rule over us — and let us return to Egypt. One might think that they merely spoke thus, but did not do. It is, therefore, written (Nechemiah 9:17) "And they refused to hearken, and they did not remember Your wonders that You wrought for them. And they stiffened their necks, and they appointed a leader to return to their work. But You are the G–d of forgiveness, gracious and merciful, withholding wrath and abundant in lovingkindness, and You did not forsake them." And it is written (Ibid. 18) "And even when they made a golden calf, etc."

Another interpretation (of Numb. 13:2) “Send men.” What is written above the matter (in Numb. 12:1)? “And Miriam spoke to Aaron about Moses.” And afterwards, (in Numb. 12:2), “Send men.” This text is related (to Is. 44:18), “They neither know nor understand; for their eyes are stuck shut so that they cannot see […].” What is the reason for saying, “Send men,” after the episode of Miriam (in Numb. 12:1ff.)?¹¹Numb. R. 16:6. It is simply that it was anticipated by the Holy One, blessed be He, that they would come and utter evil speech against the land.¹²Sot. 34a. The Holy One, blessed be He, had said that they should not [be able to] say, “We did not know what the penalty for evil speech was.” For that reason the Holy One, blessed be He, put this [story] next to the one [in which] Miriam was afflicted with leprosy, because she had spoken slander against her brother. [This was] so that everyone would know the punishment for evil speech. [It was a warning] so that if they came to speak slander, they would consider what happened to Miriam; but even so, they did not desire to learn. It is therefore stated (in Is. 44:18), “They neither know nor understand.” Therefore the Holy One, blessed be He, wrote [about] the sending out of the spies after the episode of Miriam. Ergo (in Is. 44:18), “They neither know nor understand; for their eyes are stuck shut so that they cannot see….” Another interpretation (of Numb. 13:2), “Send men for yourself”: Even though the Holy One, blessed be He, had said to Moses, “Send men for yourself,” it was not [the wish] of the Holy One, blessed be He, for them to go.¹³See Numb. R. 16:7. Why? Because the Holy One, blessed be He, had already told them [about] the superiority of the Land of Israel. It is so stated (in Deut. 8:7), “For the Lord your God is bringing you unto a good land.” Moreover, while they had been in Egypt, he had said to them (in Exod. 3:8), “I have come down to deliver them out of the hand of the Egyptians [and to bring them up out of that land unto a good and spacious land].” And Scripture states (in Exod. 13:21), “And the Lord went in front of them by day.” So what is the point of [saying] (in Numb. 13:2), “Send men?” It is simply that they wanted these words. When they reached [Israel's] borders, Moses had said to them (in Deut. 1:21), “See, the Lord your God has set the land before you, go and possess….” At that time Israel approached Moses, as stated (in vs. 22), “Then you all drew near unto me [and said, ‘Let us send men ahead of us to explore the land for us’].” This is what Ezra¹⁴See Sanh. 93b, which also alludes to the book of Nehemiah under the name of Ezra. said (in Neh. 9:17), “So they refused to listen and were unmindful of Your] wonders.” Now it says (in Numb. 10:33), “and the ark of the covenant of the Lord traveled ahead of them […].” And [yet] they said (in Deut. 1:22), “Let us send men ahead of us to explore the land for us.” [It is simply] that they did not believe. And similarly David said (in Ps. 78:10), “and they refused to follow His Torah.” R. Joshua says, “To what were they comparable? To a king who secured for his son a beautiful wife, the daughter of good and wealthy parents. The king said to him, ‘I have secured you a beautiful wife, the daughter of good and wealthy parents. There is no one like her in the whole world.’ The son said to him, ‘Let me go to see her,’ for he did not trust his father. Immediately the situation became ever more difficult for his father and it was bad for him. His father said, ‘What shall I do? If I say to him, “I am not showing her to you,” then he will say, “She is ugly.”’ For that reason he did not want to show her. Finally he said to him, ‘Look at her, so that you may know that I have not deceived you. But because you did not trust me, I swear that you shall not see her in your house. Instead I am giving her to your son.’ Now similarly did the Holy One, blessed be He, say to Israel, ‘The land is good,’ but they did not believe [Him]. They said (in Deut. 1:22), ‘Let us send men ahead of us.’ The Holy One, blessed be He, said, ‘If I prevent them, they will say, “The land is no good. For that reason He has not shown it to us.” Rather, they will only see it, for I swear that not one of them shall enter within it, but rather [only] their children.’ Thus it is stated (in Numb. 14:23, 31), ‘Surely they shall not see the land […]. But it is your children, who you said would be carried off, who will go….’’’ When they said to Moses (in Deut. 1:22), “Let us send men ahead of us,” Moses began to wonder. He said, “It is impossible for me to do something before I consult with the Holy One, blessed be He.” He went and consulted. He said to him, “Your children want thus and so.” The Holy One, blessed be He, said to him, “This is not the first time for them. While they were in Egypt, they jeered at Me, as stated (in Hos. 7:16), ‘this was their derision in the land of Egypt.’ They are accustomed to such [behavior]. I do not need this; as see, it is written (in Dan. 2:22), ‘He knows what is in the darkness, [and the light dwells with Him]’; I know what they are saying. But if you want, you yourself, ‘Send men for yourself.’” Where is it shown? Where it is written (in Numb. 13:16), “These are the names of the men whom Moses sent to spy out the land.”