With the exception of Romans through Philemon. That the apostle Paul preached. That is the whole point of the mystery, hid in God, from the foundation of the world. Found in Ephesians.
They are not the same. One is about a kingdom of believers. The other is about a body of believers. Ephesians, Chapter 2 will explain. "Time past", "but now", and "the ages to come". Evidently God has divided His timeline for mankind. This is HIS division as given to Paul. Otherwise why not call all time NOW in Ephesians?
Perhaps you are somehow unaware that Torah is what Paul preached, every day, everywhere.
In Hebrews 4:2 he makes it clear that the gospel that he preached is the exact gospel that Moses preached, and the difference in effect was a lack of faith.
The body of believers began with Adam. There is zero difference.
The “mystery” that Paul revealed is that Yeshua’s remarriage to the House of Israel to whom Paul preached was not forbidden by Torah because her husband had died.
God has divided nothing, but the sheep and the goats.
What you post is nonsense, its not found in the word, it is in the imagination of a few men. “Now” is when each person has to face his sin and repent. It is a different now for each person. “Time past” was before each person was moved by the Holy Spirit.
The kingdom is in most respects yet to come. We see it darkly, as reflected in a glass, but in that moment at the last trump we will know as we are known.