In this reading from Isaiah, the prophet describes the coming Servant of Yahweh. It is precisely this quote that Jesus first uses to announce the exact nature of his own ministry (Luke 4:18-19). In each case Jesus describes his work as moving outside of polite and proper limits and boundaries to reunite things that have been marginalized or excluded by society: the poor, the imprisoned, the blind, the downtrodden.
Jesus’ ministry is not to gather the so-called good into a private country club, but to reach out to those on the edge and on the bottom—to tell those who are “last” that they might just be first! That is almost the very job description of the Holy Spirit, and therefore of Jesus. Today some call it God’s unique kind of justice or “restorative justice.” God present with us and in us, Emmanuel, justifies things by restoring them to their true and full identity in Himself, as opposed to “retributive justice” which seeks only reward and punishment.