I also want to add, that in all that some tribes changed, and even Moses allowance for divorce, they were not condoned by God.
True, men always created grey areas where God uses black and white with no middle grey area.
We are constantly looking for loopholes, but try as we may, or do as we do, there are none.
Thus the reason Jesus told His disciples that man cannot, which proved we needed a perfect forever Sacrifice as the mediator..
However, Jesus wants us to live with our errors by asking for forgiveness, and trying harder to be right. Instead of creating grey areas to justify our weaknesses.