Genesis 6:13

קץ כל בשר THE END OF ALL FLESH — Wherever you find lewdness and idolatry, punishment of an indiscriminate character comes upon the world killing good and bad alike (Genesis Rabbah 26:5). כי מלאה הארץ חמס FOR THE EARTH IS FILLED WITH VIOLENCE — Their fate was sealed only on account of their sin of robbery (Sanhedrin 108a). את הארץ [I WILL DESTROY THEM] WITH THE EARTH — It is similar to מן הארץ "from the earth”; other examples of this use of את are: (Exodus 9:29) בצאתי ‘‘when I go forth” את העיר which means מן העיר “from the city” and (1 Kings 15:23) חלה ‘‘he suffered” את רגליו which means מן רגליו ‘‘from his feet”. Another explanation of את הארץ is: “together with the earth” — for the earth was blotted out and washed away to the depth of a furrow of three handbreadths (Genesis Rabbah 31:7).

וַיֹּ֨אמֶר אֱלֹהִ֜ים לְנֹ֗חַ קֵ֤ץ כׇּל־בָּשָׂר֙ בָּ֣א לְפָנַ֔י כִּֽי־מָלְאָ֥ה הָאָ֛רֶץ חָמָ֖ס מִפְּנֵיהֶ֑ם וְהִנְנִ֥י מַשְׁחִיתָ֖ם אֶת־הָאָֽרֶץ׃

And God said to Noaĥ, The end of all flesh is come before Me; for the earth is filled with violence through them; and, behold, I will destroy them with the earth.