Luke. 22:20. "..He took the cup after they had eaten saying, this cup which is poured out for you is the new covenant in My blood". Paul the apostle in his letters to the young church, considered this moment as the new covenant(new testament)era beginning. Paul would teach that traditional barriers between Jew and Gentile (with relationship to God) were now broken down. All were now approved on the basis of faith in the only sacrifice acceptable by God..His son, and was ratified when He rose on the third day from the grave.