The True Offspring of a Tzaddik
The Torah begins to list Noach's children and instead praises his righteousness, teaching that a tzaddik's real offspring are his good deeds.
The parshah opens, "These are the offspring of Noach," and we expect to hear the names of his sons. Instead the verse says, "Noach was a righteous man, wholehearted." Rashi explains that the Torah is teaching us what a tzaddik truly leaves behind: the real offspring of the righteous are their good deeds. The Midrash reads the same idea into the verse "The fruit of the righteous is a tree of life": the fruit is mitzvos and good deeds. It adds "he who gathers souls is wise," and applies it to Noach, who in his wisdom fed and sustained every creature in the teivah for twelve months. Children are a blessing that not everyone is given, and not every child follows his parents' way. But every person can bring into the world mitzvos and kindness that live on after him.
Source: Rashi on Bereishis 6:9; Bereishis Rabbah 30:6
Tonight, before you sleep, ask yourself what you brought into the world today. Not what you earned or finished, but one mitzvah or act of kindness that would not exist without you: a meal you served, a call you made, a bracha said with care. Name it to yourself and thank Hashem for it. If the day had none, choose one small one for tomorrow. Over time you will see a family of good deeds growing, offspring that no one can take away.