Its not replacement but is placement . The body in Christ is the bride. Christ is the anointing Holy Spirit of God .God is not a man .
Romans 12:5 So we, being
many, are one
body in Christ, and every one members one of another.
All of Israel is not born again Israel. In the same way a Jew is not a Jew outwardly according to the flesh but according to the Spirit of Christ that works in him.
If any man has not the Spirt of Christ they simply have not been born again .
The new propmised name the father named the bride is Christian As a more befitting name. It represent all the nations .
God is not the Father of one nation. Never was never will be.
We walk by faith (the eternal). Not by sight (the temporal)