That new nation was born at Pentecost 33 C.E. when God’s spirit was poured out on about 120 disciples of Jesus gathered in Jerusalem.
وَدُعِيَتْ هذِهِ ٱلْأُمَّةُ ٱلْجَدِيدَةُ « إِسْرَائِيلَ ٱللهِ » .‏ —‏ غل ٦ :‏ ١٦‏ .‏