See, the days are coming, says the Lord………..

It was Christ who established this new covenant, the new testament in his blood, calling into being, from Jews and Gentiles……….

This messianic people has Christ as its head: Christ who was given up for our sins and rose again for our justification; bearing now the name that is above every name, he reigns in glory in heaven……….

“This messianic people, then, though it does not in fact embrace all mankind and often seems to be a tiny flock, is yet the enduring source of unity, hope and salvation for the whole human race. It is established by Christ as a communion of life, of love and of truth; it is also used by him as an instrument for the redemption of all, and is sent out into the whole world as the light of the world and the salt of the earth.”  

(From the dogmatic constitution on the Church of the Second Vatican Council:The Church as sacrament of unity and salvation)