Isaiah 49:3, 5-6

He said to me, You are my servant, in you, Israel, I show my glory.

For now the LORD has spoken who formed me as his servant from the womb, That Jacob may be brought back to him and Israel gathered to him; I am honored in the sight of the LORD, and my God is now my strength! It is too little, he says, for you to be my servant, to raise up the tribes of Jacob, and restore the survivors of Israel; I will make you a light to the nations, that my salvation may reach to the ends of the earth.