The Plague of the Firstborn
1   And the LORD said unto Moses, Yet will I bring one plague more upon Pharaoh, and upon Egypt; afterwards he will let you go from here: when he shall let you go, he shall surely thrust you out from here altogether.
2   Speak now in the ears of the people, and let every man request of his neighbor, and every woman of her neighbor, jewels of silver, and jewels of gold.
3   And the LORD gave the people favor in the sight of the Egyptians. Moreover the man Moses was very great in the land of Egypt, in the sight of Pharaoh's servants, and in the sight of the people.
4   And  Moses  said,  Thus  says  the  LORD, About  midnight  will  I  go  out into the midst of Egypt:
5   And all the firstborn in the land of Egypt shall die, from the firstborn of Pharaoh that sits upon his throne, even unto the firstborn of the maidservant that is behind the mill; and all the firstborn of animals.
6   And there shall be a great cry throughout all the land of Egypt, such as there was none like it, nor shall be like it any more.
7   But against any of the children of Israel shall not  a  dog  move  his  tongue,  against  man  or animal: that you may know that the LORD does put a difference between the Egyptians and Israel.
8   And  all  these  your  servants  shall  come down unto me, and bow down themselves unto me,  saying,  Get  out,  and  all the  people  that follow you: and after that I will go out. And he went out from Pharaoh in great anger.
9   And the LORD said unto Moses, Pharaoh shall  not  hearken  unto  you;  that  my  wonders may be multiplied in the land of Egypt.
10  And  Moses  and  Aaron  did  all  these wonders before Pharaoh: and the LORD hardened Pharaoh's heart, so that he would not let the children of Israel go out of his land.