[HarleyD]

”The author gets it all wrong in the first sentence.”

Well here is the first sentence broke out:

He who would understand the prophets had better begin with Paul's Epistle to the Galatians, where he will find that
1) the Church is one in the Old Testament and New,

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 “God’s redemptive work”. Is this correct?

[P-Marlowe]

1) the Church is one in the Old Testament and New,

Well, that's wrong because Jesus said "Upon this Rock I will (future perfect tense) build my Church."

IOW, prior to that time Christ had not YET built his church, so what occurred prior to that time was NOT THE CHURCH!

Christ came to establish and build his church. It was not here when he came. The Church did not exist in the Old Testament, so the "Church" cannot be "one in the Old Testament and New". Jesus did not build something that was already here.