Exodus 9:4-6

Amplified Bible, Classic Edition

⁴ But the Lord shall make a distinction between the livestock of Israel and the livestock of Egypt, and nothing shall die of all that belongs to the Israelites.

⁵ And the Lord set a time, saying, Tomorrow the Lord will do this thing in the land.

⁶ And the Lord did that the next day, and all [kinds of] the livestock of Egypt died; but of the livestock of the Israelites not one died.