Is 49:3, 5-6

And he said to me, “You are my servant,
    Israel, in whom I will be glorified.”
4 But I said, “I have labored in vain,
    I have spent my strength for nothing and vanity;
yet surely my right is with the Lord,
    and my recompense with my God.”

5 And now the Lord says,
    who formed me from the womb to be his servant,
to bring Jacob back to him,
    and that Israel might be gathered to him,
for I am honored in the eyes of the Lord,
    and my God has become my strength—
6 he says:
“It is too light a thing that you should be my servant
    to raise up the tribes of Jacob
    and to restore the preserved of Israel;
I will give you as a light to the nations,
    that my salvation may reach to the end of the earth.”