Lice

Lice appear in Scripture as the third of the plagues that Yahweh brings on Egypt — a swarm produced from the very dust of the land, multiplying past human countermeasure and exposing the limits of Pharaoh's wisdom.

The Third Plague

The plague is called down by a word to Moses and a stretched rod in Aaron's hand. The dust of the ground itself becomes the swarm: "And Yahweh said to Moses, Say to Aaron, Stretch out your rod, and strike the dust of the earth, that it may become lice throughout all the land of Egypt. And they did so; and Aaron stretched out his hand with his rod, and struck the dust of the earth, and there were lice on man and on beast; all the dust of the earth became lice throughout all the land of Egypt" (Ex 8:16-17).

The plague reaches every surface of Egypt — every grain of dust becomes a creature, and every body, human and animal, is covered.

The Confession of Pharaoh's Sacred Scholars

For the first two plagues Pharaoh's sacred scholars had matched Aaron sign for sign. The lice break that pattern. They try and fail: "And the sacred scholars did so with their magic to bring forth lice, but they could not: and there were lice on man and on beast. Then the sacred scholars said to Pharaoh, This is the finger of God" (Ex 8:18-19). The plague forces Egypt's own ritual experts into a confession the king will not accept; "Pharaoh's heart was hardened, and he didn't listen to them; as Yahweh had spoken" (Ex 8:19).

In the Psalm of Remembrance

The psalmist's retelling of the exodus places the lice alongside the swarms of flies as part of Yahweh's act against Egypt: "He spoke, and there came swarms of flies, And lice in all their borders" (Ps 105:31). The plague is remembered as a creation by command — Yahweh speaks, and the swarms come.