Unknown Author
Judges 11:34ESV·author unknown

Then Jephthah came to his home at Mizpah. And behold, his daughter came out to meet him with tambourines and with dances. She was his only child; besides her he had neither son nor daughter.

Matthew Henry Presbyterian @wholebiblehenry

We have here Jephthah triumphing in a glorious victory, but, as an alloy to his joy, troubled and distressed by an unadvised vow. I. Jephthah's victory was clear, and shines very brightly, both to his honour and to the honour of God, his in pleading and God's in owning a righteous cause. 1. God gave him an excellent spirit, and he improved it bravely, Jdg 11:29.

Commenting on Judges 11:29-40

John Gill Reformed Baptist @doctorgill

And she said unto him, my father, if thou hast opened thy mouth unto the Lord,.... The conditional word "if" may be left out, as it is not in the original text; for her father had told her that he had opened his mouth, or made a vow to the Lord, and had no doubt explained it to her what it was, though it is...

Jamieson-Fausset-Brown Reformed @jfbcommentary

Jephthah came to Mizpeh unto his house, and, behold, his daughter came out to meet him with timbrels and with dances--The return of the victors was hailed, as usual, by the joyous acclaim of a female band (Sa1 18:6), the leader of whom was Jephthah's daughter.