The Spirit of the Sovereign Lord is on me,
    because the Lord has anointed me
    to proclaim good news to the poor.

As we begin to look at this chapter, perhaps the most important thing to bear in mind is the link with Luke 4:16-20:

16 He went to Nazareth, where he had been brought up, and on the Sabbath day he went into the synagogue, as was his custom. He stood up to read, 17 and the scroll of the prophet Isaiah was handed to him. Unrolling it, he found the place where it is written:

18 “The Spirit of the Lord is on me,
    because he has anointed me
    to proclaim good news to the poor.
He has sent me to proclaim freedom for the prisoners
    and recovery of sight for the blind,
to set the oppressed free,
19     to proclaim the year of the Lord’s favour.”

20 Then he rolled up the scroll, gave it back to the attendant and sat down. The eyes of everyone in the synagogue were fastened on him. 21 He began by saying to them, “Today this scripture is fulfilled in your hearing.”

Jesus saw Himself as the fulfilment of these wonderful words.

‘We begin this chapter, then, with a speech by the Servant-Messiah (1-6). This is followed by a confirmatory speech by the LORD himself (7-9), and finally by a song of praise by someone who is full of wonder and gratitude for what God has done for him personally (10-11). The references to the Sovereign LORD in verses 1 and 11 frame the whole chapter; the salvation which the whole chapter celebrates is his gift.’ Barry Webb: ‘Isaiah’, p.234.

”But I, with shouts of grateful praise, will sacrifice to you. What I have vowed I will make good. I will say, ‘Salvation comes from the Lord.’ ” (Jonah 2:9).