Another interpretation: "For the earth is filled with violence" (Genesis 6:13). "Violence" - this is idolatry, as it is written, "For the earth is filled with violence." "Violence" - this is sexual immorality, [as in] "My violence and my flesh be upon Babylon" (Jeremiah 51:35). "Violence" - this is bloodshed, [as in] "For the violence against the children of Judah, because they shed innocent blood in their land" (Joel 4:19). "Violence" according to its plain meaning [robbery]. "And behold, I will destroy them with the earth." Even the three handbreadths' depth of the plowshare was dissolved. To a king's son who had a tutor: whenever he misbehaved, his tutor was chastised. And to a king's son who had a wet-nurse: whenever he misbehaved, his wet-nurse was chastised. So, "And behold, I will destroy them with the earth" - behold, I will destroy them and destroy the earth with them.
The Fourfold Meaning of the Violence That Doomed the Earth
Yalkut Shimoni on Torah 51:3
דָּבָר אַחֵר, כִּי מָלְאָה הָאָרֶץ חָמָס. חָמָס זֶה עֲבוֹדָה זָרָה, דִּכְתִיב כִּי מָלְאָה הָאָרֶץ חָמָס חָמָס זוֹ גִּלּוּי עֲרָיוֹת (ירמיה נא, לה) "חֲמָסִי וּשְׁאֵרִי עַל בָּבֶל" חָמָס זוֹ שְׁפִיכוּת דָּמִים "מֵחֲמַס בְּנֵי יְהוּדָה אֲשֶׁר שָׁפְכוּ דָּם נָקִיא בְּאַרְצָם", חָמָס כְּמַשְׁמָעוֹ. וְהִנְנִי מַשְׁחִיתָם אֶת הָאָרֶץ. אֲפִילּוּ שְׁלֹשָׁה טְפָחִים שֶׁל מַחְרֵשָׁה נִמֹחוּ לְבֶן מְלָכִים שֶׁהָיָה לוֹ פֵּדָגוֹג כָּל זְמַן שֶׁהָיָה סוֹרֵחַ הָיָה פֵּדָגוֹג שֶׁלּוֹ נִרְדֶּה וּלְבֶן מְלָכִים שֶׁהָיָה לוֹ מֵנִיקָה, כָּל זְמַן שֶׁהָיָה סוֹרֵחַ הָיְתָה מֵנִיקָתוֹ נִרְדֵּית כָּךְ הִנְנִי מַשְׁחִיתָם אֶת הָאָרֶץ, הָא אֲנָא מְחַבֵּלְהוֹן וּמְחַבֵּל אַרְעָא עִמְּהוֹן.