Ephesians 2:20-22

(20-22) In these verses there is a sudden change from a political to a physical metaphor, possibly suggested by the word “household.” The metaphor itself, of the Church as “a building of God” — frequently used in the New Testament — reaches its full perfection in this passage. (1) It starts, of course, from the words of our Lord (Matthew 16:18), “On this rock I will build my Church;” but in the use of it sometimes the prominent idea is of the growth by addition of individual stones, sometimes of the complex unity of the building as a whole. (2) The former idea naturally occurs first, connecting itself, indeed, with the still more personal application of the metaphor to the “edification” of the individual to be a temple of God (found, for example, in 1 Thessalonians 5:11; 1 Corinthians 8:1; 1 Corinthians 10:23; 1 Corinthians 14:4; 2 Corinthians 5:1; 2 Corinthians 10:8). Thus in 1 Corinthians 3:9, from “ye are God’s building,” St. Paul passes at once to the building of individual character on the one foundation; in 1 Corinthians 14:4; 1 Corinthians 14:12; 1 Corinthians 14:26, the edification of the Church has reference to the effect of prophecy on individual souls; in 1 Peter 2:5, the emphasis is still on the building up of “living stones” upon “a living stone.” (Comp. Acts 20:32.) (3) In this Epistle the other idea — the idea of unity — is always prominent, though not exclusive of the other (as here and in Ephesians 4:12). But that this conception of unity is less absolute than that conveyed by the metaphor of the body will be seen by noting that it differs from it in three respects; first, that it carries with it the notion of a more distinct individuality in each stone; next, that it conveys (as in the “graffing in” of Romans 11:17) the idea of continual growth by accretion of individual souls drawn to Christ; lastly, that it depicts the Church as having more completely a distinct, though not a separate, existence from Him who dwells in it. (On this last point compare the metaphor of the spouse of Christ in Ephesians 5:25.) Hence it is naturally worked out with greater completeness in an Epistle which has so especially for its object the evolution of the doctrine of “the one Holy Catholic Church.”