וְעַתָּ֣ה יְהוָ֔ה קַח־נָ֥א אֶת־נַפְשִׁ֖י מִמֶּ֑נִּי כִּ֛י ט֥וֹב מוֹתִ֖י מֵחַיָּֽי׃ (ס)
און אַצונד, גאָט, נעם צו, איך בעט דיך, פֿון מיר מײַן נפֿש, װאָרום בעסער איך זאָל שטאַרבן, אײדער איך זאָל לעבן.
Ibn Ezra
Now: seeing that Israel had not repented, he feared that harm would come to them, and so he prayed, "please take my life," like Moses said "erase me [from Your book]...
Radak
Now, please, take my life: so that I do not see the harm to Israel, like Moses our Teacher of blessed memory said, "erase me from Your book," and "kill me, please."