That didnt work so God killed the Egyptians livestock and animals.The Pharaoh tried to bargain with Moses but Moses knew that the Pharaoh still would not let his people go. God then sent Firey hail stones and boils upon the Egyptians. God then sent locusts to cover the land.
Then the LORD said to Moses, "Stretch out your hand toward the sky so that darkness will spread over Egypt—darkness that can be felt." So Moses stretched out his hand toward the sky, and total darkness covered all Egypt for three days. No one could see anyone else or leave his place for three days.
The Stubbon King didnt let the Jews free so the final plague came,Before this final plague God commands Moses to tell the Israelites to mark a lamb's blood above their doors in order that Yahweh will pass over them (i.e., that they will not be touched by the death of the firstborn). Pharaoh loses his son and orders the Israelites to leave, taking whatever they want, and asks Moses to bless him in the name of the Lord.