The author gets it all wrong in the first sentence. He who would understand Sha'ul's epistles had better begin by understanding the Tanakh and the Gospel, since his letters assume a basic familiarity with the Scriptures he was commenting on.
Well here is the first sentence broke out:
2) and the New Testament Church is the fulfillment of all prophecy, the very last phase of God's redemptive work on earth.
What do you disagree with? I would hope that you would concur with #1. That leaves #2. If you disagree with is the fulfillment of all prophecy then you must also believe that it is not the last phase of Gods redemptive work. Is this correct?