2 The chief question, however, has been whether, because of the personal union, the divine and human natures, as also their properties, have realiter, that is, in deed and truth, a communion with one another in the person of Christ, and how far this communion extends.

3 The Sacramentarians have asserted that the divine and human natures in Christ are united personally in such a way that neither has realiter, that is, in deed and truth, in common with the other that which is peculiar to either nature, but that they have in common nothing more than the name alone. For unio, they plainly say, facit communia nomina, i.e., the personal union makes nothing more than the names common, namely, that God is called man, and man God, yet in such a way that God has nothing realiter, that is, in deed and truth, in common with humanity, and humanity nothing in common with divinity, its majesty and properties. Dr. Luther, and those who held with him, have contended for the contrary against the Sacramentarians.