Genesis 6:17

ואני הנני מביא AND I, BEHOLD, I DO BRING — God says, “Now I am prepared to agree with those angels who cautioned Me and long ago said to Me (when I was about to create man), (Psalms 8:5) “What is man that thou art mindful of him” (Genesis Rabbah 31:12). מבול A FLOOD — so called because it ruined (בלה) everything; because it cast everything into confusion (בלל), and because it brought (הוביל from root יבל) everything down from the heights to a lower level. And this last explanation underlies the translation of Onkelos who translates it by טופנא (Ar. טוף = Heb. צוף) because the Flood caused everything to float about and brought it (the Ark) to Babel which is a low-lying district. That is the reason why it (Babylon) is called, also, Shinar (שנער): because all those who died through the Flood were shaken out (ננערו) into it (Shabbat 113b).

וַאֲנִ֗י הִנְנִי֩ מֵבִ֨יא אֶת־הַמַּבּ֥וּל מַ֙יִם֙ עַל־הָאָ֔רֶץ לְשַׁחֵ֣ת כׇּל־בָּשָׂ֗ר אֲשֶׁר־בּוֹ֙ ר֣וּחַ חַיִּ֔ים מִתַּ֖חַת הַשָּׁמָ֑יִם כֹּ֥ל אֲשֶׁר־בָּאָ֖רֶץ יִגְוָֽע׃

And, behold, I will bring the flood of waters upon the earth, to destroy all flesh, in which is the breath of life, from under heaven; and every thing that is on the earth shall die.