I don't believe that someone can give you warranty in anything. I'm not religious and I think something has value for people if other people or you put work in it. 
if your husband/wife gave you vow some years ago and now he/she wants divorce, who can enforce this vow? government?
a person can divorce simply because it's physically possible and vows are just a mental construct.
it somehow reminds me of "intrinsic" value of gold.