Williamson, H. G. M. Variations on a Theme: King, Messiah and Servant in the Book of Isaiah. The Didsbury Lectures. Carlisle, Cumbria: Paternoster Press, 1998.
The book of Isaiah is among the most beloved and influential works of Old Testament prophetic literature, due in no small part to its rich promises of restoration and hope and the numerous passages that have historically been interpreted as messianic. Yet Isaiah is also among the most vigorously debated books in biblical scholarship, particularly with respect to its authorship and compositional history. While the book presents itself as the vision of Isaiah son of Amoz, a broad consensus within critical scholarship understands Isaiah in its present form as the product of a complex process of composition and development spanning different periods of Israel’s history. In his 1997 Didsbury Lectures at Nazarene Theological College, H. G. M. Williamson takes this critical consensus as his starting point and asks how the various portraits of king, Messiah, and servant found throughout Isaiah might be understood within the changing historical circumstances that he believes lie behind the book’s composition. The resulting volume, Variations on a Theme: King, Messiah and Servant in the Book of Isaiah, offers a lucid and remarkably fair treatment of the diversity of Isaiah’s messianic expectations against the background of pre-exilic, exilic, and post-exilic Israel. Although Williamson’s reconstruction depends upon a compositional understanding of Isaiah that I ultimately find unpersuasive, his analysis nevertheless raises important questions concerning the relationship between the book’s various royal, messianic, and servant expectations.
Williamson develops his argument by tracing the changing forms of royal and messianic expectation across the different historical settings that he believes are reflected within the book of Isaiah. Beginning with the eighth-century material associated with Isaiah himself, Williamson examines the place of the Davidic monarchy and the royal ideology reflected in passages such as Isaiah 7, 9, and 11, asking in what sense these texts can properly be described as “messianic.” He then follows these expectations into the exilic and post-exilic material, where the disappearance of the Davidic monarchy required, on his reconstruction, the adaptation of earlier royal hopes to new historical circumstances. Particular attention is given to the servant material of Isaiah 40–55 and to the question of whether the servant should be identified with, or understood as developing from, earlier royal and messianic expectations. Williamson resists simply collapsing the categories of king, Messiah, and servant into a single figure, preferring instead to trace the ways in which related traditions are preserved, reworked, and reapplied across the book’s compositional history. The resulting picture is therefore intentionally one of “variations on a theme”: royal and messianic ideas display important continuities across Isaiah, but their particular expression changes as they are applied within different historical circumstances. Williamson’s primary concern is consequently not to construct a single unified portrait of an Isaianic Messiah, but to explain historically how the book’s diverse royal, messianic, and servant traditions came to assume the forms in which they now appear.
Among the greatest strengths of Williamson’s study are the clarity with which he presents a notoriously complicated subject and the exegetical restraint with which he approaches Isaiah’s diverse royal, messianic, and servant traditions. Despite the complexity of the historical and interpretive questions involved, Williamson writes with remarkable lucidity, guiding the reader through an enormous body of secondary literature without allowing the scholarly discussion to obscure the argument itself. His extensive familiarity with this literature is particularly evident in the fairness with which he presents competing interpretations, even when he ultimately finds them unpersuasive. More importantly, Williamson resists the temptation to collapse the categories of king, Messiah, and servant prematurely into a single messianic figure. Each text is examined within its own literary and proposed historical context, and connections between these various traditions must be demonstrated rather than merely assumed. Even readers who remain unconvinced by Williamson’s reconstruction of Isaiah’s compositional history can appreciate the methodological caution that characterizes this approach. Christian readers in particular can sometimes be tempted to allow later Christological conclusions to determine in advance how individual Isaianic texts must be interpreted. Williamson’s careful differentiation of these traditions provides a useful corrective by forcing the reader to ask what each passage contributes on its own terms before considering how these expectations might ultimately relate to one another. Ironically, it is precisely this exegetical restraint that makes the question of their eventual convergence all the more interesting.
The most significant weakness of Williamson’s study, at least from my perspective, is the degree to which his reconstruction of Isaiah’s messianic expectations depends upon a particular understanding of the book’s compositional history. Williamson takes for granted the prevailing critical view that Isaiah developed over an extended period of time, with different portions of the book reflecting pre-exilic, exilic, and post-exilic historical circumstances. This assumption does considerable interpretive work throughout the study, since variations among Isaiah’s royal, messianic, and servant expectations can consequently be explained as adaptations of earlier traditions within changing historical contexts. Yet this reconstruction is considerably less persuasive if one accepts the book’s own attribution to Isaiah son of Amoz and understands the substantial unity of Isaiah as originating with the eighth-century prophet. From this perspective, the diversity Williamson identifies still requires explanation, but it cannot simply be accounted for by locating different expressions of messianic hope at successive stages in Israel’s history. Indeed, one might instead ask whether the variations themselves belong to a deliberately multifaceted prophetic presentation in which royal, servant, and eschatological expectations are developed alongside one another. None of this renders Williamson’s individual exegetical observations without value, and his historical reconstructions are consistently presented with considerable care. Nevertheless, because his account of the development of messianic expectation is so closely intertwined with his account of Isaiah’s compositional development, readers who remain unconvinced by the latter will inevitably find important elements of the former less compelling.
A second limitation concerns Williamson’s tendency to emphasize the historical differentiation of Isaiah’s royal, messianic, and servant traditions at the expense of their literary and theological convergence within the final form of the book. His caution against simply identifying the king, Messiah, and servant with one another is well taken, and any proposed relationship among these figures must arise from the texts themselves rather than from later Christian interpretation. Nevertheless, the final form of Isaiah contains important indications that these initially distinguishable traditions increasingly overlap. Isaiah 55:3–5 is particularly significant in this regard. Here the “faithful kindnesses of David” are immediately associated with a figure whom God has appointed as a “witness to the peoples, a leader and commander for the peoples,” and whose mission extends to nations previously unknown to him. This language stands remarkably close to the servant’s own vocation as a witness and agent of salvation to the nations in Isaiah 40–55. Whatever compositional history might stand behind these texts, their placement within the final form of Isaiah invites the reader to consider their relationship rather than merely their historical differentiation. Williamson is therefore right to resist collapsing every royal and servant text into an undifferentiated messianic portrait, but his diachronic approach can obscure the degree to which the book itself brings these traditions into conversation with one another. Greater attention to this synchronic dimension would strengthen his analysis by allowing both the genuine diversity of Isaiah’s messianic expectations and their developing literary convergence to receive their full weight.
In the final analysis, Variations on a Theme is a valuable and stimulating contribution to the study of messianism in the book of Isaiah. Williamson’s lucid writing, extensive command of the secondary literature, and careful attention to the distinctive contours of Isaiah’s royal, messianic, and servant traditions make the volume worthwhile even for readers who remain unconvinced by the compositional framework upon which much of his reconstruction depends. Indeed, Williamson is surely right to insist that the diversity of these traditions should be taken seriously and that their relationship cannot simply be assumed on the basis of later Christological interpretation. At the same time, greater attention to the final literary form of Isaiah suggests that the “variations” Williamson so carefully identifies may ultimately participate in a more unified “theme” than his diachronic approach allows. The king, Messiah, and servant need not be collapsed into indistinguishable categories for us to recognize the ways in which their identities, missions, and expectations increasingly converge across the book. For this reason, Williamson’s study is perhaps most valuable not because it settles the relationship among these figures, but because it clarifies the exegetical and historical questions that any adequate account of Isaiah’s messianic expectations must address. Readers interested in Isaiah, Old Testament messianism, or the relationship between royal and servant traditions will find much here with which to engage, whether or not they ultimately follow Williamson in his reconstruction of how these traditions developed.
