בא בשר כל קץ לנח אלקים ויאמר” מפניהם חמס הארץ מלאה כי לפני (יג ו) “הארץ את משחיתם והנני
The Chasam Sofer explained: When saying “ki mal’ah ha’aretz chamas” the passuk alludes that Noach was also guilty of this sin, by not rebuking those in his generation and not davening for them to be saved. This is because it behooves the tzaddik of the generation to reproof the members of the generation and to pray for them, and by the fact that Noach refrained from doing so, he was found to have robbed them of the reproof that he should have given them and the tefillah that he was obligated to offer on their behalf.
The Zohar (Noach 67 2) explains that because Noach did not ask for compassion for those in his generation, the mabul was called in his name as it says “ki mei Noach zos Li” (Yeshayah 54:9). And we can say that calling the mabul “mei Noach” alludes to the sin for which it was called in his name, because “מי נח” is numerically equivalent to חמס– to allude that due to the chamas, the stealing that occurred by him not praying for his generation, the mabul was called “mei Noach” in his name.
Toras Moshe Hashalem, Haftaras Noach p. 34
