To treat the fourth Servant Song (52.13-53.12) as a separate division of the book is not to give credence to the outmoded view that it is an intrusion into the flow of the prophecy. Rather, such a procedure is intended to emphasize that this section is the culmination and resolution of all that precedes it, and also that it forms the basis for the remainder of the book. In this passage, we have the explanation of how Yahweh can righteously fulfill His undertaking to save the people – through the achievement of the Servant. As has already been indicated in 49.7 and 50.6, His mission involves rejection and suffering, but here opposition to the Servant progresses to involve His death. The song shows that the Servant undergoes suffering and death on behalf of others, and it is on this basis that the covenant of peace is extended to Zion (54.10) and the whole world is presented with the offer of the everlasting covenant (55.3). The Servant’s work also provides the foundation for the subsequent work of the servants who acknowledge what the Servant has done on their behalf (54.1-66.24). This sublime portion of Scripture breaks through the flow of Old Testament revelation and rises unconstrained to new heights.
From: A Study Commentary on Isaiah: Volume 2: Chapters 40-66 by John L. Mackay (Darlington: EP Books, 2009), p. 330.
John L. Mackay is an ordained minister in the Free Church of Scotland. He has been Professor of Old Testament in the Free Church College in Edinburgh, Scotland, since 1983.