My simplistic definition is that it an agreement.
Any agreement.
I would like to say thank you for opening up a good Sabbath study for us today. But I have to disagree with "any agreement" and here is why.
When you look at all the passages that have the slightly two different definitions of the word vow (
vow h5087{30 verses} a
vow h5088 {58 verses}). you will soon learn (correct me if I am wrong) that these are not vows one to another: man to man, woman to woman, man to woman, woman to man, so on and so forth. But you will learn that these are vows made to YaHWeH. Not once were any of these passages used between two individuals, which leads me to address your below comment.
Granted that if your wife decides to buy a new Volvo, our present society doesn’t have the capacity to comprehend your responsibility to cancel the contract if you were to decide that it would have a negative effect upon the family finances.
I agree that we don't want any negative effect on the family finances, but if my wife was to go out and buy a "new Volvo" it is not something done unto YaHWeH but to two individuals, which leads me to say we have to stand behind our word thus fulfilling [Mat 5:37 KJV] 37 But let your communication be, Yea, yea; Nay, nay: for whatsoever is more than these cometh of evil.
Me personally I believe if your wife is a YaH fearing wife, she will make her husband look good [Pro 31:23 KJV] 23 Her husband is known in the gates, when he sitteth among the elders of the land. and [Pro 31:11-12 KJV] 11 The heart of her husband doth safely trust in her, so that he shall have no need of spoil. 12 She will do him good and not evil all the days of her life.
And she also [Pro 31:16 KJV] 16 She considereth a field, and buyeth it: with the fruit of her hands she planteth a vineyard. But she does it in a way that brings honor to her husband.
Now if she is foolish woman she just might make foolish choices, such as purchasing a "new Volvo". Now if we can't really afford a new car, I might take her and the car back to the dealership and say hey we can't afford this, I would like to return it. If I am correct and I am going by old memories here, when I used to buy new vehicles, I had a 3 day grace period to change my mind, after that it was a binding contract. And I would ask the dealership to honor that grace period, if it existed.
I hope this all makes sense.