you forgot Jesus...He, too was a Jew....however, His entire reason for coming to Earth was to establish a new and everlasting covenent.....Christians were indeed born out of Judaism but that is the difference....once people became followers of Christ they were no longer bound by the old laws....you said Yes, that the Apostles would have brought forth the new testamant teachings and indeed they did....as Catholics
Where does it say that in the Bible?