Exodus 8:20-22

Amplified Bible

²⁰ Now the Lord said to Moses, “Get up early in the morning and stand before Pharaoh as he is coming out to the water [of the Nile], and say to him, ‘Thus says the Lord, “Let My people go, so that they may serve Me. ²¹ For if you do not let My people go, hear this: I will send swarms of [bloodsucking] insects on you and on your servants and on your people and into your houses; and the houses of the Egyptians will be full of swarms of insects, as well as the ground on which they stand. ²² But on that day I will separate and set apart the land of Goshen, where My people are living, so that no swarms of insects will be there, so that you may know [without any doubt] and acknowledge that I, the Lord, am in the midst of the earth.