It's easy to see them as just divine punishment, but Jewish tradition often digs deeper, searching for layers of meaning. Let's explore one fascinating idea from Shemot Rabbah, a classic collection of rabbinic interpretations on the Book of Exodus.

Our story centers on the very first plague: water turning to blood. Remember the dramatic scene in Exodus 7:18-19? "The fish that are in the Nile will die and the Nile will become foul; and the Egyptians will loathe to drink water from the Nile...Take your staff, and stretch your hand over the water of Egypt...and they will become blood." A pretty devastating image, right?

But have you ever wondered why Moses didn't strike the Nile himself? Why was it Aaron who performed this particular miracle?

Rabbi Tanhum poses this very question in Shemot Rabbah. The answer? A profound lesson in gratitude. The Holy One, blessed be He, says to Moses, in effect: "The water protected you when you were cast into the Nile as a baby. It wouldn't be right for you to now strike it with a plague. Aaron will have to do it." Isn't that amazing? The water that saved Moses as an infant now becomes a source of suffering for the Egyptians. There's a beautiful, almost poetic justice at play.

And the plague was comprehensive. Shemot Rabbah emphasizes that "everything that was in the Nile, in the ponds, and in the rivers" turned to blood. Even water in jugs! It goes on to say that "even what an Egyptian spit was blood." Yikes!

But why blood specifically? Shemot Rabbah explains that this was midah k'neged midah (מידה כנגד מידה), "measure for measure" – a punishment that fit the crime. This concept appears elsewhere, like in Genesis 15:14, where God tells Abraham, "The nation that they will serve I will judge..." The Egyptians, we're told, prevented Israelite women from immersing in ritual baths (mikva'ot) after their menstrual cycles. This was a cruel attempt to control the Israelite population by preventing them from conceiving children. So, in response, God afflicted their water supply with blood. The very source of life and purification was turned against them.

The text continues with a passage from Exodus 7:20-21: "Moses and Aaron did so, as the Lord commanded...and all the water that was in the Nile turned into blood. The fish that were in the Nile died; and the Nile became foul, and the Egyptians could not drink water from the Nile; and the blood was throughout the land of Egypt."

And here's where it gets even more interesting. Rabbi Avin HaLevi, son of Rabbi, adds another layer to the story. He suggests that the Israelites actually profited from the plague of blood! How? Imagine an Egyptian and an Israelite sharing a house with a tub of water. When the Egyptian tried to draw water, it would turn to blood. But when the Israelite drew water, it remained pure. The Egyptian would have to plead with the Israelite for a sip, and even then, the moment it touched the Egyptian, it would become blood again! The only way for the Egyptian to get untainted water was to purchase it from the Israelite. Thus, the Israelites became wealthy from the very plague meant to punish the Egyptians.

So, what can we take away from this passage in Shemot Rabbah? It’s not just a simple story of divine retribution. It's a multi-layered narrative about gratitude, justice, and even a bit of entrepreneurial spirit in the face of adversity. It reminds us to look beyond the surface of the text and consider the deeper meanings hidden within. And perhaps, it challenges us to think about how we, too, can find opportunities for growth and even prosperity, even in the midst of challenging times. What hidden blessings might be disguised as plagues in our own lives?