This can be stated in active form. Alternate translation: "a woman who has been divorced by a man" (See: [[rc://en/ta/man/translate/figs-activepassive]])
Here Moses speaks of how a woman has committed herself to fulfilling a promise as if her promise were a physical object that she had bound to her body. Alternate translation: "which she has committed herself to fulfill" (See: [[rc://en/ta/man/translate/figs-metaphor]])
This is an idiom. It means that her vows will remain in effect and she will be required to fulfill them. See how you translated a similar phrase in [Numbers 30:4](../30/04.md). Alternate translation: "she will be obligated to fulfill" (See: [[rc://en/ta/man/translate/figs-idiom]])