For pre millenialists the ark and all things 3rd temple signifies the beginning of Rev chapter 4. As most items are completed( save the temple, the ark, and the heifer) some believe this, like no other time is quickly ending the church age.
What “Church age”? Jesus promised us that Matt. 5:14 “You are the light of the world. A town built on a hill cannot be hidden.”
This means his Church is a visible organization. It must have characteristics that clearly identify it and that distinguish it from other churches. Jesus promised, “I will build my Church and the gates of hell will not prevail against it” (Matt. 16:18).
No separate covenants for Jews and for gentiles - we are all ONE expanded Israel