Exodus 9:4-6

New Revised Standard Version, Anglicised Catholic Edition

⁴ But the Lord will make a distinction between the livestock of Israel and the livestock of Egypt, so that nothing shall die of all that belongs to the Israelites.”’ ⁵ The Lord set a time, saying, ‘Tomorrow the Lord will do this thing in the land.’ ⁶ And on the next day the Lord did so; all the livestock of the Egyptians died, but of the livestock of the Israelites not one died.