Supersessionism
Supersessionism, also called fulfillment theology by its proponents and replacement theology by its detractors, is the Christian doctrine that the Christian Church has superseded the Jewish people, assuming their role as God's covenanted people, thus asserting that the New Covenant through Jesus has superseded or replaced the Mosaic covenant. Supersessionists hold that the universal Church has become God's "New Israel" and thus Christians are the people of God, not Jews.