Charles Ellicott Commentary Judges 11:37

"And she said unto her father, Let this thing be done for me: let me alone two months, that I may depart and go down upon the mountains, and bewail my virginity, I and my companions." — Judges 11:37 (ASV)

Let me alone two months. —There was nothing that forbade this postponement for a definite purpose and period of the fulfillment of the vow. For the phrase “let me alone,” see Deuteronomy 9:14; 1 Samuel 11:3.

And bewail my virginity. —The thought that was so grievous to the Hebrew maiden was not death, but to die unwedded and childless. This is the bitterest wail of Antigone also, in the great play of Sophocles (Antigone 890); but to a Hebrew maid the pang would be more bitter, because the absence of motherhood cut off from her, and, in this instance, from her house, the hopes that prophecy had cherished. Josephus makes the expression mean no more than “to bewail her youth,” neoteta” (Josephus, Antiquities 5.7.10).