Exodus 9:2

Then the LORD said to Moses, “Go in to Pharaoh, and tell him, ‘This is what the LORD, the God of the Hebrews, says: “Let my people go, that they may serve me.

behold, the LORD’s hand is on your livestock which are in the field, on the horses, on the donkeys, on the camels, on the herds, and on the flocks with a very grievous pestilence.

The LORD will make a distinction between the livestock of Israel and the livestock of Egypt; and nothing shall die of all that belongs to the children of Israel.”’”

The LORD appointed a set time, saying, “Tomorrow the LORD shall do this thing in the land.”