What kind of communion of the divine nature must that be of which the apostle says, "in [Christ] the whole fullness of deity dwells bodily" so that God and man are one person? It is important that this doctrine about the communion of the properties of both natures be treated and explained with proper discrimination. There are many ways of speaking about the person of Christ and of its natures and properties. When these are used without proper distinction, the doctrine becomes confused and the simple reader is easily led astray. The following explanation should be carefully noted:
In Christ two distinct natures exist and remain unchanged and unconfused in their natural essence and properties. Yet there is only one person consisting of both natures. Therefore, that which is an attribute of only one nature is attributed not to that nature alone, as separate. It is attributed to the entire person, who is at the same time God and man (whether the person is called God or man).
In this way of speaking, it does not make sense that what is attributed to the person is at the same time a property of both natures. But its nature is distinctively explained by what is ascribed to the person. So "His Son … was descended from David according to the flesh" (Romans 1:3). Also: Christ was "put to death in the flesh" (1 Peter 3:18) and "suffered in the flesh" (1 Peter 4:1). (paragraphs 34-37)
Condensed from CONCORDIA: THE LUTHERAN CONFESSIONS, copyright 2005,2006 by Concordia Publishing House. Used by permission. All rights reserved. To purchase a copy of CONCORDIA, call 800-325-3040.