NC meaning in Community ?

The New Covenant (Hebrew ברית חדשה‎ berit hadashah ; Greek διαθήκη καινή diatheke kaine) is a biblical interpretation originally derived from a phrase in the Book of Jeremiah (Jeremiah 31:31-34), in the Hebrew Bible (or Old Testament in Christian Bible).

Generally, Christians believe that the promised New Covenant was instituted at the Last Supper as part of the Eucharist, which in the Gospel of John includes the New Commandment. Based on the Bible teaching that, "For where a testament is, there must also of necessity be the death of the testator. For a testament is of force after men are dead: otherwise it is of no strength at all while the testator liveth", Protestants tend to believe that the New Covenant only came into force with the death of Jesus Christ. The commentary to the Roman Catholic New American Bible also affirms that Christ is the "testator whose death puts his will into effect". Christians thus believe that Jesus is the mediator of the New Covenant, and that the blood of Christ shed at his crucifixion is the required blood of the covenant.

There are several Christian eschatologies that further define the New Covenant. For example, an inaugurated eschatology defines and describes the New Covenant as an ongoing relationship between Christian believers and God that will be in full fruition after the Second Coming of Christ; that is, it will not only be in full fruition in believing hearts, but in the future external world as well. The connection between the blood of Christ and the New Covenant is seen in most modern English translations of the New Testament such as in the statement: "this cup that is poured out for you is the new covenant in my blood".