“We must give eleventy gazillion dollars to Israel because ‘they are God’s Chosen People’ and ‘those who bless you I will bless’” is a refrain Christians have been told their entire lives. There is no single theological issue that is the cause of greater confusion among Christians than what the status of Israel is in the New Covenant.
Christians are in the New Covenant. Most Christians understand this. But the confusion begins when we consider the Old Covenant. What was the point of the Old Covenant?
When God made a Covenant with Abraham and then developed it further with his descendants under Moses, what was the purpose of it?
How is the New Covenant made in Jesus’s blood so radically different?
These are questions that were sorted out throughout the New Testament. And despite much of the New Testament dealing with this issue, and millennia of Christian tradition extrapolating from it, confusion reigns today.