"The Wife of Bath begins the Prologue to her tale by establishing herself as an authority on marriage, due to her extensive personal experience with the institution. Since her first marriage at the tender age of twelve, she has had five husbands. She says that many people have criticized her for her numerous marriages, most of them on the basis that Christ went only once to a wedding, at Cana in Galilee. The Wife of Bath has her own views of Scripture and God’s plan. She says that men can only guess and interpret what Jesus meant when he told a Samaritan woman that her fifth husband was not her husband. With or without this bit of Scripture, no man has ever been able to give her an exact reply when she asks to know how many husbands a woman may have in her lifetime. God bade us to wax fruitful and multiply, she says, and that is the text that she wholeheartedly endorses. After all, great Old Testament figures, like Abraham, Jacob, and Solomon, enjoyed multiple wives at once. She admits that many great Fathers of the Church have proclaimed the importance of virginity, such as the Apostle Paul. But, she reasons, even if virginity is important, someone must be procreating so that virgins can be created. Leave virginity to the perfect, she says, and let the rest of us use our gifts as best we may—and her gift, doubtless, is her sexual power. She uses this power as an “instrument” to control her husbands." (1)
She's a fantastic character and actually quite witty. As an expert on marriage.......... she believes in the institution and the command from God to be fruitful and multiply. He motivation for writing would be to provide a book on self-help; how to get a husband (she got five!) she must be doing something right, or the perfect 'how to guide' explaining exactly how a woman can get what she wants from her husband. Control makes a happy marriage.
Chauver's narrative in this story is an allegorical confession.