Isaiah 49:4

49:4 But I said, I have labored in vain, I have spent my strength for nothing and vanity; yet surely the justice [due] to me is with Yahweh, and my recompense with my God.
-World English Bible

Other Translation

49:4 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.
-King James Version