Children of good deeds
אלה תולדות נח נח איש צדיק תמים היה בדרתיו את-האלקים התהלך-נח
These are the offspring of Noach – Noach was perfectly righteous in his generation; Noach walked with Hashem 
This week’s parsha begins by introducing Noach and his family. However, when the Torah starts to list Noach’s offspring, it immediately changes topic and sings his praises. The Torah tells us that Noach was perfectly righteous, and walked with G-d. Only afterwards are his children’s names mentioned. Why did the Torah introduce these praises by saying “These are the offspring of Noach”? Rashi explains that “the main offspring of the righteous are their good deeds”. Rashi didn’t fully explain himself. Why indeed are good deeds called “offspring”?