No one can second guess the times and challenges they faced, and how they had to deal with it. I am very assured if those in Bible times were here today and witnessed how we deal with issues, they would think we were the nut cases. There are two sides to a story, and until all facts can be uncovered, one can only guess on the whys and how comes of the past.
The most important message was nothing new to man, it has been written on our hearts, Do to others as you would have done to you. You don?t need a Bible to tell you that.