John Wesley on Numbers 30:10

If she vowed - If she that now a widow, or divorced, made that vow while her husband lived with her; as suppose she then vowed, that if she was a widow, she would give such a proportion of her estate to pious or charitable uses, of which vow she might repent when she came to be a widow, and might believe or repented she was free from it, because that vow was made in her husband's lifetime; this is granted, in case her husband then disallowed it; but denied, in case by silence, or otherwise he consented to it.