In affirming the sacrificial nature of the Mass, Ronald Knox stands squarely in the Thomistic and Tridentine tradition. His manner of expression, structure of his arguments, choices about what themes to highlight and which to leave in the background, use of images, and spiritual lessons are Knox’s own, but the basic theological underpinnings of his understanding of the Sacrifice of the Mass is an inherited part of the Tradition, a fact Knox would be the first to affirm.