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

16. How did Christ reprove those who, though familiar with the letter of the Scriptures, failed to understand them?
How will the curse of the confusion of tongues be brought to an end?
What did the Lord command Abraham to do?
18. Before giving the law at Sinai, what did God say because some of the people went out to gather manna on the seventh day?
Do they take any part in earthly things?
When is the resurrection of the righteous to take place?
How much did this promise comprehend?

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