Why Choose Joshua?

(12) יהוה said to Moses, “Ascend these heights of Abarim and view the land that I have given to the Israelite people. (13) When you have seen it, you too shall be gathered to your kin, just as your brother Aaron was. (14) For, in the wilderness of Zin, when the community was contentious, you disobeyed My command to uphold My sanctity in their sight by means of the water.” Those are the Waters of Meribath-kadesh, in the wilderness of Zin.

(15) Moses spoke to יהוה, saying, (16) “Let יהוה, Source of the breath of all flesh, appoint someone over the community (17) who shall go out before them and come in before them, and who shall take them out and bring them in, so that יהוה’s community may not be like sheep that have no shepherd.”

(18) And יהוה answered Moses, “Single out Joshua son of Nun, an inspired man, and lay your hand upon him. (19) Have him stand before Eleazar the priest and before the whole community, and commission him in their sight. (20) Invest him with some of your authority, so that the whole Israelite community may obey. (21) But he shall present himself to Eleazar the priest, who shall on his behalf seek the decision of the Urim before יהוה. By such instruction they shall go out and by such instruction they shall come in, he and all the Israelite [militia], and the whole community.”

(1) עלה אל הר העברים GO UP INTO [THIS] MOUNT ABARIM — Why does this follow immediately here? Because when the Holy One, blessed be He, said to Moses, (v. 7) “Thou shalt surely give them an inheritance in the land” he (Moses) said, “It is me that the Omnipresent has commanded to apportion the inheritance. Perhaps then the decree that I must die in the wilderness is annulled and I shall enter the Promised Land!” Whereupon God said to him, “My decree remains exactly as it was” (Midrash Tanchuma, Pinchas 9). —

Another explanation: As soon as Moses entered into the territory of the sons of Gad and the sons of Reuben (the eastern side of the Jordan, which, having been assigned to these tribes, might be regarded as part of the Promised Land), he rejoiced, saying, “It seems to me that the vow regarding me has been annulled in my favour”. God, therefore, said to him, My decree remains exactly as it was.

A parable! It may be compared to the case of a king who decreed against his son that he should not enter the door of his palace. He (the king) entered within the gate, and he (the son) went after him (without the father raising any objection); to the audience chamber, and he after him. But as soon as he was about to enter his sleeping-chamber (his private room) he said to him, “My son, from here and further on you may not go” (Sifrei Bamidbar 134:4).

(1) 'וידבר משה אל ה‎‎‎ וגו׳ AND AND MOSES SPAKE TO THE LORD, [LET THE LORD … SET A MAN OVER THE CONGREGATION] — This statement serves to show the praise of the righteous: when they are about to depart from the world, they abandon all thought of their own affairs and occupy themselves with the affairs of the community (Sifrei Bamidbar 138).

(9) Moses said to Joshua, “Pick some troops for us, and go out and do battle with Amalek. Tomorrow I will station myself on the top of the hill, with the rod of God in my hand.” (10) Joshua did as Moses told him and fought with Amalek, while Moses, Aaron, and Hur went up to the top of the hill. (11) Then, whenever Moses held up his hand, Israel prevailed; but whenever he let down his hand, Amalek prevailed.

(17) When Joshua heard the sound of the people in its boisterousness, he said to Moses, “There is a cry of war in the camp.” (18) But he answered,
“It is not the sound of the tune of triumph,
Or the sound of the tune of defeat;
It is the sound of song that I hear!” (19) As soon as Moses came near the camp and saw the calf and the dancing, he became enraged....

(16) “Let יהוה, Source of the breath of all flesh, appoint someone over the community (17) who shall go out before them and come in before them, and who shall take them out and bring them in, so that יהוה’s community may not be like sheep that have no shepherd.” (18) And יהוה answered Moses, “Single out Joshua son of Nun, an inspired man, and lay your hand upon him. (19) Have him stand before Eleazar the priest and before the whole community, and commission him in their sight. (20) Invest him with some of your authority, so that the whole Israelite community may obey. (21) But he shall present himself to Eleazar the priest, who shall on his behalf seek the decision of the Urim before יהוה. By such instruction they shall go out and by such instruction they shall come in, he and all the Israelite [militia], and the whole community.” (22) Moses did as יהוה commanded him. He took Joshua and had him stand before Eleazar the priest and before the whole community. (23) He laid his hands upon him and commissioned him—as יהוה had spoken through Moses.

(1) WHO MAY GO OUT BEFORE THEM. In war.

(8) The spies had not yet gone to sleep when she came up to them on the roof. (9) She said to the men, “I know that GOD has given the country to you, because dread of you has fallen upon us, and all the inhabitants of the land are quaking before you. (10) For we have heard how GOD dried up the waters of the Sea of Reeds for you when you left Egypt, and what you did to Sihon and Og, the two Amorite kings across the Jordan, whom you doomed. (11) When we heard about it, we lost heart, and no one had any more spirit left because of you; for the ETERNAL your God is the only God in heaven above and on earth below.

(6) And Joshua son of Nun and Caleb son of Jephunneh, of those who had scouted the land, rent their clothes (7) and exhorted the whole Israelite community: “The land that we traversed and scouted is an exceedingly good land. (8) If pleased with us, יהוה will bring us into that land, a land that flows with milk and honey, and give it to us; (9) only you must not rebel against יהוה. Have no fear then of the people of the country, for they are our prey: their protection has departed from them, but יהוה is with us. Have no fear of them!” (10) As the whole community threatened to pelt them with stones, the Presence of יהוה appeared in the Tent of Meeting to all the Israelites.