Like picking up a large sponge dripping with water out of a bucket, the passages we have been studying of late and will be studying today in the New Testament are saturated with the Old Testament. In Romans chapters 9–11, Paul uses the Old Testament to explain what God is doing with the nation of Israel in his day. His readers wanted to know if Jesus was the long-awaited Messiah, why are so few Jewish people becoming Christians? What is up with, not just their absence, but how do we explain their hostility towards Christians? Something seems askew.
In the process, we will see how Paul interprets many Old Testament prophetic passages that pertain to Israel as a nation. Noticing what Paul is doing, it is not long before one realizes that prophesies about Israel as a nation are treated not as something that will occur in the distant future, but they were being fulfilled in his own day. Reading the New Testament and comparing it to the Old, it should dawn on us, that he was, and we continue to be, in the last days! (Compare Acts 2:17–21 with Joel 2: 28–32).