G-d sends Moses and Aaron to prepare for the final plague

• The Lord said to Moses: I will bring one more plague upon Pharaoh and upon Egypt; afterwards he will let you go from here. When he lets you out, he will completely drive you out of here. Please, speak into the ears of the people, and let them borrow, each man from his friend and each woman from her friend, silver vessels and golden vessels. G-d gave the people favor in Pharaoh's eyes; also Moses was highly esteemed in the eyes of Pharaoh's servants and in the eyes of the people.

Moses warns Pharaoh about DEATH OF THE FIRSTBORN

• Moses said, "So said the Lord, At the dividing point of the night, I will go out into the midst of Egypt, and every firstborn in the land of Egypt will die, from the firstborn of Pharaoh who sits on his throne to the firstborn of the slave woman who is behind the millstones, and every firstborn animal. And there will be a great cry throughout the entire land of Egypt, such as there never has been and such as there shall never be again. But to all the children of Israel, not one dog will whet its tongue against either man or beast, in order that you shall know that the Lord will separate between the Egyptians and between Israel.' And all these servants of yours will come down to me and prostrate themselves to me, saying, Go out, you and all the people who are at your feet,' and afterwards I will go out." Then Moses exited from Pharaoh with burning anger.

• The plagues are potentially related, with red Nile water causing frogs to spawn, wild beasts contributing to the death of animals, and dead animal carcasses causing boils.