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

What is necessary in order that the preaching of the gospel may be profitable?
How did the father show his joy at his son's return?
What instruction shows that sanctification is a progressive work?
19. What message did Christ send to John the Baptist while John was in prison, to strengthen his wavering faith?
What result is to be obtained by the exercise of the gifts in the church?
When God brought His people out of Egypt, how did He republish His law?
When these things should begin to come to pass, what did Christ tell His people to do?

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