Similarly, the men of the generation of the flood rebelled only out of satiety, it being written of them (Job 21:10) "Their bull genders and does not fail; their cow calves, and does not abort … (12) They take the timbral and harp, and rejoice at the sound of the organ. (13) They spend their days in wealth, and in a moment go down to the grave." This (i.e., satiety) is the cause. (14) "And they say unto G-d: 'Depart from us'": They said: All we need (from Him) is one drop of rain.
We do not need Him (for that. We can manage the water problem ourselves.) (Bereshith 2:6) "And a mist went up from the earth and watered the whole face of the ground." The Holy One Blessed be He said to them: "You vaunt yourselves over the good that I have bestowed upon you? With it I shall exact punishment of you!" — (Ibid. 7:12) "And the rain was on the earth forty days and forty nights."
R. Yossi b. Dermaskith says: They made their eyes (eineihem) rove up and down to satisfy their lust — The Holy One Blessed be He, in kind, opened upon them the upper and lower fountains (maynoth [like "eineihem"]) in order to destroy them, as it is written (Ibid. 13) "On this day were broken up all the fountains of the great deep, and the windows of heaven were opened."