In the earliest ages there was no such nation as “Israel”, and God treated people purely on an individual basis. Likewise, today, believers are not dealt with by God on the basis of nationality.
However, much of the Bible does illustrate that God was dealing with Israel in a unique way for quite some time (and will do so again some time in the future). This colour-coded chart shows the sections of the Bible which were written whilst Israel was being dealt with as a special nation in God’s plans.
Click on the image below to enlarge.