Judges 21:1 records the original oath not to give daughters to Benjamin, which verse 18 cites as the reason they cannot.

Judges 21:5 records another oath (to kill those who didn't assemble); both oaths drive the narrative of preserving Benjamin.

Judges 21:7 poses the problem of finding wives despite the oath; verse 18 restates that oath as the obstacle.

Judges 21:22 offers a legal workaround to avoid breaking the oath stated in verse 18.

Judges 11:35 shows Jephthah bound by his vow, paralleling Israel's inability to break their oath not to give wives.

Leviticus 5:4 addresses guilt from rash oaths; Israel's oath here is similarly binding but they seek a loophole.