'Undertaking' in the Bible

When a man takes an oath to the Lord, or gives an undertaking having the force of an oath, let him not go back from his word, but let him do whatever he has said he will do.

If a woman, being young and under the authority of her father, takes an oath to the Lord or gives an undertaking;

If her father, hearing of her oath or the undertaking she has given, says nothing to her, then all her oaths and every undertaking she has given will have force.

And if she is married to a husband at the time when she is under an oath or an undertaking given without thought;

But if her husband, hearing of it, makes her take it back, then the oath she made and the undertaking she gave without thought will have no force or effect, and she will have the Lord's forgiveness.

But an oath made by a widow or one who is no longer married to her husband, and every undertaking she has given, will have force.

And her husband, hearing of it, said nothing to her and did not put a stop to it, then all her oaths and every undertaking she gave will have force.

But if her husband, on hearing of it, made them without force or effect, then whatever she has said about her oaths or her undertaking has no force: her husband has made them without effect, and she will have the Lord's forgiveness.

Every oath, and every undertaking which she gives, to keep herself from pleasure, may be supported or broken by her husband.