Those who reject the notion of hierarchy in the imminent Trinity often point to B. B. Warfield as a supporter of their position. In his article in ISBE on the Trinity,1 Warfield discusses at length his reservations about reading what we see in the economic Trinity back into the immanent Trinity.
19. The Implications of “Son” and “Spirit”
. . . To the fact of the Trinity—to the fact, that is, that in the unity of the Godhead there subsist three Persons, each of whom has his particular part in the working out of salvation—the New Testament testimony is clear, consistent, pervasive and conclusive. There is included in this testimony constant and decisive witness to the complete and undiminished Deity of each of these Persons; no language is too exalted to apply to each of them in turn in the effort to give expression to the writer’s sense of His Deity: the name that is given to each is fully understood to be “the name that is above every name.” When we attempt to press the inquiry behind the broad fact, however, with a view to ascertaining exactly how the New Testament writers conceive the three Persons to be related, the one to the other, we meet with great difficulties. Nothing could seem more natural, for example, than to assume that the mutual relations of the Persons of the Trinity are revealed in the designations, “the Father, the Son, and the Holy Spirit,” which are given them by Our Lord in the solemn formula of Mt. 28:19. Our confidence in this assumption is somewhat shaken, however, when we observe, as we have just observed, that these designations are not carefully preserved in their allusions to the Trinity by the writers of the New Testament at large, but are characteristic only of Our Lord’s allusions and those of John, whose modes of speech in general very closely resemble those of Our Lord. Our confidence is still further shaken when we observe that the implications with respect to the mutual relations of the Trinitarian Persons, which are ordinarily derived from these designations, do not so certainly lie in them as is commonly supposed.