"The Council of Chalcedon met in 451 to deal with the issue as it came to focus at the critical point, in Christology. If the two natures of Christ were confused, it meant that the door was opened to the divinizing of human nature; man and the state were then potentially divine. If the human nature of Christ were reduced or denied, His role as man’s incarnate savior was reduced or denied, and man’s savior again became the state. If Christ’s deity were reduced, then His saving power was nullified. If His humanity and deity were not in true unison, the incarnation was then not real, and the distance between God and man remained as great as ever."
--R. J. Rushdoony, "The Foundations of Social Order"