OK. How would this fit in?
“Unto him be glory in the church by Christ Jesus throughout all ages, world without end. Amen.” — Eph 3:21
Would you, or could you, agree that when Paul wrote these words he is looking forward. It is hard for something that did not yet exist to be glorify Christ.
Could Paul glorify Christ prior to his salvation on the road to Damascus?
At the time of this writing there are at least two ages to come . . . the millennial age and Eternity. We are not told if there will be “ages to come” beyond that. Some also believe that the tribulation period could also be assigned it’s own age.
But as to duration . . . it is world without end.
Some limit Jesus in scope to his birth as a human child. How might he be a blessing to those that lived before?
Now, I am only using this as a weak example for I am sure you are aware of the pre-incarnate Christ (or Christophanies) that occurred prior to the Word taking upon Himself flesh.
Was He not a blessing as He revealed His glory to Abraham, to Jacob, to Joshua, etc.?
But we are addressing the church. Although the saints of the church will not have the same capacity as millennial saints - they will still bring glory to Jesus Christ.