God commands Aharon to lift his rod and bring up the frogs upon the land of Mizraim (Exodus 8:1). Targum Pseudo-Jonathan on Exodus 8:1 echoes the Hebrew faithfully but it is the very next verse that clarifies why Aharon — and not Moses — must do this.
The instruction is ritual-precise. Stretch the hand. Stretch the rod. Cover the rivers, trenches, and canals. This is the same map as the first plague, the same geography of Egypt's water supply, but now the water will respond differently. Water that once ran as the blood of judgment will now birth a living, breathing inconvenience.
The meturgeman is teaching that God's instruments are repurposable. The rod that turned the Nile to blood is not finished working; it is being re-deployed. Each plague is not a new weapon but the same weapon swung at a new angle. The God of Israel does not need ten different miracles to break Pharaoh. He needs one rod, one prophet, one priest, and the patience to keep lifting them.
The takeaway: the tools of redemption are fewer than we think. What changes is not the rod, but what God chooses to do with it on the tenth repetition.