12 And the Lord said unto Moses, Stretch out thine hand over the land of Egypt for the locusts, that they may come up upon the land of Egypt, and eat every herb of the land, even all that the hail hath left. 13 And Moses stretched forth his rod over the land of Egypt, and the Lord brought an east wind upon the land all that day, and all that night; and when it was morning, the east wind brought the locusts.
Once again, the Lord instructed Moses to begin the plague by stretching his hand over the land. In response to Moses’s action, an east wind blew across the land. It blew all day and night, and on the next day a swarm of locusts arrived with it. This seems to be proof that the locusts did not spontaneously pop into existence. They were gathered from some distant place, having been grown and cultivated by the Lord for some time in preparation of this curse. Thus, when Moses pronounced the plague it was already long in the making, all that remained was for it to be delivered.
It is also worth noting that this is not the first time that the east wind had been used as an ill omen for Egypt. Once before, Joseph had interpreted the Pharaoh’s dream of an east wind blasting the grain and withering it in the stalk. The east wind will also be used a third time as an instrument of destruction on the Egyptian people, when Moses parts the Red Sea and then drowns their armies in the midst of it.
Because of these accounts, the east wind has since been seen as a symbol of death and devastation. The question naturally arises, though, what was the significance of the wind being from the east? Though we are not given a definitive answer in the Bible, a brief examination of a map suggests two interesting possibilities.
First, nearly the entire eastern edge of Egypt is bordered the Red Sea. This sea is notable for its deep-red hue and for being one of the saltiest bodies of water on earth. It has long been considered a symbol of death, both for its blood-like appearance and because its water will kill any plant. Thus, one can see how an east wind that blew to Egypt from the Red Sea could be used as an omen for impending destruction.
There is also a second possible meaning for the east wind. We are told that the Israelites lived in the land of Goshen, which is high in the northern regions of Egypt. If the Egyptians resided nearby, such as in the valley of Ramses, then they also would be in that northern region. And the north part of Egypt is the only part that does not border the Red Sea to the east. It borders the land of Canaan, including the region where Jerusalem would one day be established! Thus it might have been that the east wind had blown in from the land of the Lord. The wind might have represented the hand of God, and if so, then it makes sense that while the east wind only brought death and destruction upon the Egyptians, it always elevated and supported the people of Israel. It empowered Joseph to be a prince of Egypt, it helped convince the Pharaoh to let the enslaved Israelites go, and we will soon read of it covering the retreat of the fleeing Israelites.