Yahweh gives instructions to Moses and Aaron for the Israelites to prepare a meal and mark their houses with blood. He kills all the firstborn humans and livestock in Egypt, passing over the homes marked with blood. The Israelites prepare to leave Egypt, collecting gold, silver and clothing from their neighbors and preparing unleavened dough. Yahweh gives instructions to for future generations to celebrate this festival in remembrance.
Yahweh commands Moses to tell Pharaoh that the firstborn in all of Egypt will die.
Yahweh sends a plague of locusts to devour the land. Egypt is ruined but Pharaoh still will not let the Israelites go. Then Yahweh covers the Egypt in darkness for three days.
Yahweh sends a plague on the Egyptian livestock, killing all that was in the fields except in the land of Goshen. He then sends boils and hail. Pharaoh still refuses to let the Israelites go.
Yahweh continues to bring plagues onto Egypt with increasing severity. Pharaoh still refuses to let the Israelites go.