Just as the book called Isaiah plays on the concepts of YHWH’s strength and his provision of strength to Jacob/Israel, so does the book’s discourse regarding the servant of YHWH make artful use of the concepts of gentleness, weakness, and dimness.
The formal presentation of YHWH’s servant in chapter 42 initiates this interplay of concepts across parallel subjects.
Here is my servant, whom I uphold, my chosen, in whom my soul delights; I have put my spirit upon him; he will bring forth justice to the nations.
He will not cry or lift up his voice, or make it heard in the street; a bruised reed he will not break, and a dimly burning wick (ופשתה כהה) he will not quench; he will faithfully bring forth justice.
He will not grow faint (לא יכהה) or be crushed until he has established justice in the earth; and the coastlands wait for his teaching.”
Isaías 42:1-4 (NRSV, emphasis and Hebrew text added)
The servant’s task and eventual achievement is portrayed as a quite formidable establishment of justice across many nations, indeed ‘in the earth’ (NRSV). In ordinary circumstances, such a feat might be expected to depend upon the application of great force.
Not here. Instead, the servant will not quench ‘a dimly burning wick’. The expression deploys the verb כהה. The metaphor is best understood as presenting a weary or disheartened person or population. We are asked to imagine that the subjection of that people to the conditions of justice will not crush the dispirited or vulnerable members of its population.
One might have expected the metaphor, having served its purpose, to recede from view. But this does not happen.
Instead, the very next verse hints at the servants own vulnerability and the effective perseverance that will triumph over it. The very same root is now deployed as a verb. The servant ‘will not grow faint’ (לא יכהה). The oscillation in NRSV between the metaphorical wick’s ‘dimly burning’ nature and the servant’s refusal to ‘grow faint’ is perhaps a necessary concession to the demands of translation. Sadly, it sacrifices the play on words that binds the weak members among the nations who will not be crushed in the course of the servant’s administration or impost of justice to the servant’s own refusal to give in to the exhaustion with which his task is understood to threaten him.
This is not the last time that verbal artistry will serve to bind YHWH’s servant deeply to the identity of YHWH himself or to that of human beings who will be impacted by his vocation. In this case, the servant’s gentle disposition towards the objects of his calling and the vulnerability he shares with them but somehow overcomes conspire to bind the two subjects into a remarkable if subtly suggestive solidarity.
All of this occurs in the context of the world-shaping, world-remaking administration of justice which the servant of YHWH appears to ‘bring out’ from Zion for the benefit of nations that, for their part, await the instruction that will shape their new future.