“A person might hear a warning. Or a person might see or hear something that he should tell to other people. If that person does not tell what he saw or heard, then that person is guilty of doing wrong.
But if her husband hears about the promise and refuses to let her keep the promise, then she does not have to do what she promised. It does not matter what she promised, her husband can break the promise. If her husband breaks the promise, then the Lord will forgive her.
How does the husband let his wife keep her promises? If he hears about the promises and does not stop them, then the woman must do exactly what she promised.
Those are the commands that the Lord gave to Moses. Those are the commands about a man and his wife, and about a father and his daughter that is still young and living at home in her father’s house.
But if her father hears about the promise and does not agree, then she is free from her promise. She does not have to do the thing she promised. Her father stopped her, so the Lord will forgive her.
But if the husband hears about the promise and refuses to let her keep her promise, then the wife does not have to do the thing she promised. Her husband broke the promise—he did not let her do the thing she said. So the Lord will forgive her.