וַאֲנִ֤י אָמַ֙רְתִּי֙ לְרִ֣יק יָגַ֔עְתִּי לְתֹ֥הוּ וְהֶ֖בֶל כֹּחִ֣י כִלֵּ֑יתִי אָכֵן֙ מִשְׁפָּטִ֣י אֶת־יְהוָ֔ה וּפְעֻלָּתִ֖י אֶת־אֱלֹהָֽי׃
Cependant moi je pensais: "En vain je me suis fatigué, c’est pour le vide et le néant que j’ai dépensé ma force." Mais non, mon droit est auprès de l’Éternel, et ma récompense auprès de mon Dieu.
Rashi on Isaiah
And I said, I toiled in vain when I saw that I admonish them and they do not obey.
Ibn Ezra on Isaiah
Then I said. Then I, the prophet, said.
Rashi on Isaiah
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].