Isaiah 49:4 in the King James Version
Then I said, I have laboured in vain, I have spent my strength for nought, and in vain: yet surely my judgment is with the LORD, and my work with my God.
Context
3 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 in vain for nothing; yet surely the justice due to me is with the LORD, and my reward with my God.”
5 Now the LORD, he who formed me from the womb to be his servant, says to bring Jacob again to him, and to gather Israel to him, for I am honorable in the LORD’s eyes, and my God has become my strength.