Marah is the nation's first stop in the Wilderness after being freed from Egyptian bondage. The nation arrives there with meager provisions, no legal code and a theological vacuum.  Which of these needs does Hashem think it most necessary to address at this juncture and how is this expressed in the story?  This Torahcast, brought to you by ALHATORAH.ORG, featuring Neima Novetsky, explores these questions and more.  See also:  https://alhatorah.org/Miracles_and_Mitzvot_at_Marah