Aliya Summary: Moshe stretched his hand over the sea and the waters that had been standing like walls now fell upon the Egyptians, drowning them all. Moshe then led the Israelites in song, praising G‑d for the wondrous miracle that had transpired. Miriam, Moshe’s sister, then led the women in song and dance, with musical accompaniment. The Israelites traveled on in the desert, journeying three days without encountering water. They then arrived in Marah, where there was water—but bitter water. Moshe miraculously sweetened the water.
Aside from the literal meaning of the text, this episode is considered an allusion to the primacy of Torah in the life of a Jew. Both Torah and water sustain life – spiritual and physical. In the same vein, “three days without water” resulted in our reading the Torah on Monday and Thursday, so that in our wandering in the spiritual desert of life, we will not go 3 days without spiritual water. This is but one “use” of the well-known analogy between Torah and water.