Isaiah 49
4 Ref But I said, I have labored in vain, I have spent my strength for nought and vanity; yet surely the justice `due' to me is with Jehovah, and my recompense with my God.
5 Ref And now saith Jehovah that formed me from the womb to be his servant, to bring Jacob again to him, and that Israel be gathered unto him (for I am honorable in the eyes of Jehovah, and my God is become my strength);