Who or what is the immoral woman mentioned in Proverbs 2:16-19?
The woman in question is called a ‘strange’ woman in the Hebrew text. Then, in what follows in Prov. 2.17-19, it is made clear that she is an adulteress, one who has violated a marriage which was arranged for her when she was a teenager. The advice given may in fact suggest that the woman has gone so far as to become a prostitute, for it speaks of ‘those’ who go to her, referring to more than one. It is also possible, indeed likely, that the term ‘strange’ indicates we are also dealing with a foreign woman.
—Ben Witherington III