Midrash su I Cronache 9:20

“The toil of the fools will exhaust him, as he will not know to go to a city” (Ecclesiastes 10:15).
“The toil of the fools will exhaust him” – this is a student who stagnates in his study; “as he will not know to go to a city” – should he not have gone to his teacher to restore his learning to him?
Another matter: “The toil of the fools will exhaust him” – this is Yiftaḥ; “as he will not know to go to a city” – should he not have gone to Pinḥas so he would annul his vow for him?⁶⁹Yiftaḥ had vowed that the first item that would exit his house to meet him upon his return home would be a sacrifice to God. When he returned home, his daughter was first to exit his house, and because of the vow, she lived out her life in solitude (see Judges 11:30–40). However, Yiftaḥ said: ‘I am the chief and commander of Israel; shall I go to Pinḥas?’ Pinḥas said: ‘I am a High Priest, son of a High Priest; shall I go to an ignoramus?’ Between the two of them that unfortunate one was lost, and the two of them are liable for her blood. Yiftaḥ’s limbs were severed one after another and buried, as it is written: “He was buried in the cities of Gilad” (Judges 12:7). In how many places was he buried that you say: “He was buried in the cities of Gilad”? Rather, it teaches that his limbs were severed one after another, and each one was buried in its place. What did Pinḥas lose? The Divine Spirit left him for two hundred years, as it is not written, “he was chief over them,” but it is written: “Pinḥas ben Elazar had been chief over them; in the past the Lord was with him” (I Chronicles 9:20).⁷⁰The Lord had been with him in the past, but was not with him in the present.

What did Moses do? He took a thousand men (and) a prince from each tribe of the tribes of Israel. Behold, (there were) twelve thousand (men), and he who had been zealous because of the immorality, was the prince over them. The holy vestments and the trumpets of alarm were in his hand, and they went, and they took captive the daughters of Midian, and they brought them (to the camp). (Moses) said to (Phineas): Because of these did not twenty-four thousand men of Israel fall? as it is said, "Behold, these caused the children of Israel, through the counsel of Balaam, to commit trespass against the Lord in the matter of Peor" (Num. 31:16); and he began to be angry with them, as it is said, "And Moses was wroth with the officers of the host" (Num. 31:14). During his anger the Holy Spirit departed from him. Hence thou mayest learn that the impetuous man destroys his wisdom. Eleazar saw and he heard (the voice) behind (Moses), as it is said, "And Eleazar the priest said unto the men of war… This is the statute of the Law which the Lord hath commanded Moses" (Num. 31:21). He said to them: He commanded Moses and He did not command me.