Complete Passuk
וַיֹּ֣אמֶר יְהֹוָ֗ה לֹֽא־יָד֨וֹן רוּחִ֤י בָֽאָדָם֙ לְעֹלָ֔ם בְּשַׁגַּ֖ם ה֣וּא בָשָׂ֑ר וְהָי֣וּ יָמָ֔יו מֵאָ֥ה וְעֶשְׂרִ֖ים שָׁנָֽה׃
Chabad / Judaica Press
Core Text
Core Textלְעֹלָם — שֶׁלֹּא תְּהֵא נִשְׁמָתָן חוֹזֶרֶת לִנְדָנָהּ.
English of Core Text: “Forever” — so that their souls should not return to their sheath (body).
On the daf / in context: The word “le-olam” is read as a permanent severance of soul from body for that generation.
Type of Learning: Custom (souls not restored)
What Is Learned: The souls of the Flood generation will not return to their bodies.