Then the LORD said to Moses, "Go in to Pharaoh, and say to him, 'Thus says the LORD, the God of the Hebrews, "Let my people go, that they may serve me.
For if you refuse to let them go and still hold them,
behold, the hand of the LORD will fall with a very severe plague upon your cattle which are in the field, the horses, the asses, the camels, the herds, and the flocks.
But the LORD will make a distinction between the cattle of Israel and the cattle of Egypt, so that nothing shall die of all that belongs to the people of Israel."'"
And the LORD set a time, saying, "Tomorrow the LORD will do this thing in the land."
And on the morrow the LORD did this thing; all the cattle of the Egyptians died, but of the cattle of the people of Israel not one died.
And Pharaoh sent, and behold, not one of the cattle of the Israelites was dead. But the heart of Pharaoh was hardened, and he did not let the people go.
Revised Standard Version of the Bible, copyright 1952 [2nd edition, 1971] by the Division of Christian Education of the National Council of the Churches of Christ in the United States of America. Used by permission. All rights reserved. (Revised Standard Version - Holy Bible)