Rashi, on Isa 49:4

“And I said: I have laboured in vain, I have spent my strength without cause and in vain: therefore my judgment is with the Lord, and my work with my God.”

“And I said, I toiled in vain when I saw that I admonish them and they do not obey. Yet surely my right is with the Lord He knows that it is not from me but from them [i.e., He knows that their failure to obey is not due to my laziness, but to their obstinacy].”

Imported from an open dataset — not yet checked against the printed edition.