Rashi, on Judg 11:39

“And the two months being expired, she returned to her father, and he did to her as he had vowed, and she knew no man. From thence came a fashion in Israel, and a custom has been kept:”

“She became the subject of a law. Legislation was enacted prohibiting any repetition of this, for, had he approached Pinchos, or had Pinchos approached him, he would have released him from his vow. But they refused to humble themselves, and were, thus, both responsible for her ruin. They were punished. The Divine Presence departed from Pinchos, as it is said in Divrei Hayamim, "Adonoy was with him previously." We learn that he was not with him later. And Yiftoch was afflicted with ulcerations and the loss of his limbs, as it is said, "He was buried in the cities of Gilod." Another interpretation: "She became the subject of a law in Yisroel" relates to the following passage.”

Hebrew and Aramaic words are the commentator’s citations of the sacred text; the English translation that follows each is the translator’s.

Imported from an open dataset — not yet checked against the printed edition.