Comentario citado sobre Números 27:17

לצאת ולבא ist der allgemeine Ausdruck für die öffentliche Wirksamkeit einer Volksleitung (siehe zu Bamidbar 27, 17).

ברוך אתה בבואך...ובצאתך, ”you will be blessed when you are coming in ...and when you are going out.” This refers to coming home from war and going out to do battle. The expressions בא and צאת, are used in this sense in Numbers 27,17: אשר יצא לפניהם ואשר יבא לפניהם , “who will go out in front of you when going to war and before you when returning from battle.”

Get yourself up. [Even though we read the word as קֻם], it is written קם [which could be read קָם]. [The explanation therefore would be as follows]: Your prayers to Me have stood up for you, and [everything] you mentioned.³Your prayers and everything you said have accomplished their purpose. I will not permit the people to be defeated. Another explanation: you stood yourself in the camp and did not go out with them,⁴When you sent the men to capture the city of Ai, you remained at the camp and did not lead them. and I had said, ‘Who will take them out [to war] and who will bring them [back].’⁵Bamidbar 27:17. ‘For you will bring the Bnei Yisroel— and I will be with you.’⁶Devorim 31:23. ‘For he will cross over before this people, and he will spur them on to inherit.’⁷Devorim 3:28. If you go before them, they will succeed, and if not, they will not succeed. Another explanation: Get yourself up, it is your fault [because of you] that this has happened to them. I did not tell you to sanctify the booty of the city.

and they anointed [him] to the Lord as ruler - Heb. נָגִיד, from an expression of נְגִידוּ, the Targum for (Ex. 12:21): “pull,” as in (Num. 27:17): “... who will go out before them and who will come in before them and who will lead them out and who will bring them in.”