My reward is with my God.

Isaiah 49:01-13
I have labored in vain; I have spent my strength for nothing at all. Yet what is due me in the Lord's hand, and my reward is with my God.
And now the Lord says - he who formed me in the womb to be his servant to bring Jacob back to him and gather Israel to himself, for I am honored in the eyes of the Lord and my God has been my strength - he says: "It is too small a thing for you to be my servant to restore the tribes of Jacob and bring back those of Israel I have kept. I will also make you a light for the Gentiles, that my salvation my reach to the ends of the earth.
The Redeemer and Holy One of Israell - to him who was despised and abhorred by the nation, to the servant of rulers; "King will see you and stand up, princes will see and bow down, because of the Lord, who is faithful, the Holy One of Israel, who has chosen you.
Shout for joy, you heavens; rejoice, you earth: burst into song, you mountains! For the Lord comforts his people and will have compassion on his afflicted ones.
Part tow of the larger section (40-50) opens with the second 'Servant Song'. God's servant is Israel, yet also one who will bring Israel back.
Why?
What is due me in the Lord's hand and my reward is with my God. I am looking forward to my Lord, He is my hope and my way.
Jesus Christ is the light to all people in the dark, Jesus Chris is the way of salvation.
Shout for joy, you heaven; rejoice, your earth; burst into song, you mountain. All of the world, all the creation will give praise to the Lord.
How?
Shout for joy, rejoice, for the Jesus Christ is reign in the heaven and in the world. He is my salvation .