What many call the second Servant Song (49:1-6) is spoken by the Servant himself. Called before birth, he is a hidden weapon: a sharp sword and "a polished shaft" kept in God's quiver. Surprisingly God calls him "my servant, Israel" (verse 3), yet his mission is "to bring Jacob again to him" (verse 5). So the Servant is an ideal Israel who does what the nation could not, restoring Israel itself. In the New Testament, Christians see this fulfilled in Jesus, the true Israel.
The Servant's discouragement—"I have labored in vain. I have spent my strength in vain for nothing"—is answered by a widened mission: "It is too light a thing" only to restore Israel. "I will also give you as a light to the nations, that you may be my salvation to the end of the earth." In the New Testament, Paul and Barnabas cited this verse in Acts 13:47 as their command to preach to the Gentiles, and Paul applies verse 8 ("I have answered you in an acceptable time") in 2 Corinthians 6:2.
The second half (verses 14-26) answers Zion's lament, "Yahweh has forsaken me." God's reply uses the strongest human image of love—a nursing mother—and then surpasses it: "Yes, these may forget, yet I will not forget you!" Ancient people sometimes tattooed a name on the hand as a sign of devotion; God says, "I have engraved you on the palms of my hands." Zion, who felt bereaved, would be overwhelmed with returning children from north, west, and "the land of Sinim."