MrsSmith was just pointing out that you are not that familiar with the content of the Bible. As for the New Covenant it has just one meaning. Where you get this it means different things to different people is beyond me. The old Covenant was fulfilled when Christ died on the Cross and the New Covenant which encompassed all people who believe took its place.
Jews don't recognize the New Covenant so how can it mean anything to them? Calvanists (of which I am one) and the rest of Christianity all agree on what it is.








