This was to fulfill what had been spoken through Isaiah the prophet: Behold, my servant whom I have chosen,
my beloved in whom I delight;
I shall place my Spirit upon him,
and he will proclaim justice to the Gentiles. . . . . And in his name the Gentiles will hope. (Mt 12:17-18, 21)

The Gospel of Matthew is citing one of the four Servant Songs from the prophet Isaiah. The earliest Christology (the understanding of who Jesus is) finds its roots in these ancient passages. It is interesting to note how important justice is in the understanding of who Jesus is: Jesus our justice and our hope.