Judges 11:30

30 and he made a vow to the Lord, and said, If thou shalt betake the sons of Ammon into mine hands,

Judges 11:30 Meaning and Commentary

Judges 11:30

And Jephthah vowed a vow unto the Lord
Before he set out for the land of the children of Ammon, and to fight with them; hoping that such a religious disposition of mind would be regarded by the Lord, and be acceptable to him, and he should be blessed with success in his enterprise:

and said, if thou shall without fail deliver the children of Ammon into
mine hands;
though he was assured of the justness of his cause, and of his call to engage in it, he seems to have some little diffidence in his mind about the success of it; at least, was not fully certain of it.

Judges 11:30 In-Context

28 And the king of the sons of Ammon would not assent to the words of Jephthah, which he sent by the messengers.

29 Therefore the spirit of the Lord was made upon Jephthah, and he compassed Gilead, and Manasseh, Mizpeh and Gilead (and then back to Mizpeh of Gilead); and he passed (over) from thence to the sons of Ammon,

30 and he made a vow to the Lord, and said, If thou shalt betake the sons of Ammon into mine hands,

31 whoever goeth out first of the doors of mine house, and cometh against me turning again with peace from the sons of Ammon, I shall offer him (up as a) burnt sacrifice to the Lord. (whoever first goeth out of the doors of my house, and cometh to meet me when I return in victory over the Ammonites, I shall offer him up as a burnt sacrifice to the Lord.)

32 And Jephthah went to the sons of Ammon, to fight against them, which the Lord betook into his hands;