[There were] ten generations from Adam to Noah. [This is] to show how much patience [exists] before Him, for all those gen-erations angered [God] increasingly, until He brought upon them the waters of the Flood.  [There were] ten generations from Noah to Abraham. [This is] to show how much patience exists before Him, for all those generations were increasingly contemptuous [before God], until Abraham came and took upon himself the reward for them all.