What unites all believers under the new covenant?

Answer

"Wherefore remember, that you being in time past Gentiles in the flesh, who are called Uncircumcision by
that which is called the Circumcision in the flesh made by hands; that at that time you were without Christ,
being aliens from the commonwealth of Israel, and strangers from the covenants of promise, having no
hope, and without God in the world: but now in Christ Jesus you who sometimes were far off are made
nigh by the blood of Christ." Eph. 2: 11-13.
SIMILARITIES BETWEEN THE TWO COVENANTS

To whom does the \"seed\" in these promises refer?
What will the truly repentant sinner he constrained to do ?
What witness does the true believer in Christ have that he is accepted of God?
How was the destruction of Jerusalem and the sanctuary by the Romans then foretold?
What title was given to the fourth state of the church?
When praying what must we do in order to be forgiven?
What peaceful condition will prevail in the earth made new?

Questions & Answers are from the book Bible Readings for the Home Circle