ISA 49:4

4 And I said, I travailed in vain, I wasted my strength without cause, and vainly; therefore my doom is with the Lord, and my work is with my God. (And I said, I have laboured in vain, I have wasted my strength for nothing, and in vain; and yet my judgement, or my justice, is still with the Lord, and my reward is with my God.)