וַיַּ֥עַן אַבְרָהָ֖ם וַיֹּאמַ֑ר הִנֵּה־נָ֤א הוֹאַ֙לְתִּי֙ לְדַבֵּ֣ר אֶל־אֲדֹנָ֔י וְאָנֹכִ֖י עָפָ֥ר וָאֵֽפֶר׃
Und Abraham begann wieder und sprach: Siehe, ich habe mich einmal unterfangen, zu dir, Herr, zu reden; und ich bin doch nur Staub und Asche.
Rashi on Genesis
הואלתי means I am willing to speak, just as (Exodus 2:21) “And Moses was pleased (ויואל) [to dwell with the man]”.
Sforno on Genesis
I have begun. To present my inquiry regarding Divine justice. I am but dust and ashes.
Radak on Genesis
ויען..הואלתי, “I wanted to speak some more to G’d, אנכי עפר ואפר, even though compared to You I am only dust and ashes. I did not mean to protest Your justice, but I merely wish to understand it.