[count-your-change]

Not a replacement but the progression from the fleshly nation of Israel under the old Law covenant to the nation of “Israel” under the new covenant

For example Paul called the old Law a yoke of slavery that Christ had freed the Galatians (Gal. chapters 4,5) from and hence it was to the Jews that Christ preached to first to give them first opportunity to become part of what God now was establishing as Israel under the new covenant.

[wmfights]

Not a replacement but the progression from the fleshly nation of Israel under the old Law covenant to the nation of “Israel” under the new covenant

I agree that in this dispensation God has blessed believers with the Spirit to help them conform to His will and most importantly God has forgiven our sins because of His Son. However, if you read Romans 11 it is clear that this mercy God has shown us has not ended His plan for Israel.