**The bible sure isn't.**
The Bible IS focused on the history of the Israelites -- Old Covenant in the Old Testament
As well as the New Covenant (Jesus Christ) brought through the fulfillment of the older promised in the OT.
You would be surprise how many times the Mother of God, Mary, IS mentioned in both books. She is the fulfillment of quite a few prophecies in the Old Testament. But you may have never looked at Mary, the Mother of Jesus in this way before.
I think most of those instances are quite debatable.