The American Cyclopædia — Nevin…
“ At the close of 1851 he resigned his situation as professor in the theological seminary, continuing to act as president of Marshall college until its removal to Lancaster in 1853. He was the originator and exponent of what is called the “Mercersburg system of theology,” which arose on the occasion of some revival measures in 1843. It endeavored to restore the Protestant sacramental faith of the 16th century, and opposed sects as a rejection of the actual incarnation of Christ in his church. The church is the body of Christ, and hence divine and an object of faith ”
