וְהֵ֣יךְ יוּכַ֗ל עֶ֤בֶד אֲדֹנִי֙ זֶ֔ה לְדַבֵּ֖ר עִם־אֲדֹ֣נִי זֶ֑ה וַאֲנִ֤י מֵעַ֙תָּה֙ לֹֽא־יַעֲמָד־בִּ֣י כֹ֔חַ וּנְשָׁמָ֖ה לֹ֥א נִשְׁאֲרָה־בִֽי׃
我主的這個僕人怎能和我主說話呢？至於我，從現在起，我身上再沒有一點力氣，連一口氣也不剩了。」
Rashi
this servant of my lord He refers to himself as a servant, and to the angel as “my lord,” i.e., to say, How will your servant be able to speak with you?