Why would God give the Old Testament Law with its harsh and nonsensical rules that allowed slavery, mysogeny, violence, bloody ritual and more? Why not give the perfect law of love from the very beginning? Why make such a drastic change later on?
If the main point was to speak to a culture in it’s own language, doesn’t that mean God accommodated his law based on human culture?
Instead of saying “slavery is wrong, no matter what” he caved in and allowed slavery because “humans were going to do it anyway.” That is like God allowing homosexuality, because that is the language of our culture.
If the main point was to show the terrible consequences for sin, how is it helpful to show the tragic effect of one behavior by encouraging many more brutal and violent behaviors? How is it helpful to give allowance for men to marry their kidnapped victim to show that sin is bad?