19 The magicians then said to Pharaoh, “This is the finger of Elohim!” But the heart of Pharaoh was hardened, and he did not listen to them, as יהוה had said.
20 And יהוה said to Mosheh, “Rise early in the morning and stand before Pharaoh as he comes out to the water, and say to him, ‘Thus said יהוה, “Let My people go, so that they serve Me.
21 “Or else, if you do not let My people go, see, I am sending swarms of flies on you and your servants, and on your people and into your houses. And the houses of the Mitsrites shall be filled with swarms of flies, and also the ground on which they stand.
22 “And in that day I shall separate the land of Goshen, in which My people dwell, that no swarms of flies shall be there, so that you know that I am יהוה in the midst of the land.
23 “And I shall put a distinction between My people and your people. Tomorrow this sign shall be.” ’ ”
24 And יהוה did so, and thick swarms of flies came into the house of Pharaoh, and into his servants’ houses, and into all the land of Mitsrayim, and the land was ruined because of the swarms of flies.
25 Pharaoh then called for Mosheh and Aharon, and said, “Go, slaughter to your Elohim in the land.”