Dating of exodus
Yahweh commands Moses to take a census of the Israelites and establishes the duties of the Levites. Yahweh commands Moses to send twelve spies ahead to Canaan to scout the land.
The spies discover that the Canaanites are strong, and, believing that the Israelites cannot defeat them, the spies falsely report to the Israelites that Canaan is full of giants so that the Israelites will not invade (Numbers -33).
Moses and Aaron return to Pharaoh and this time ask him to free the Israelites.
Pharaoh demands that Moses perform a miracle, and Aaron throws down Moses' staff, which turns into a snake; however, Pharaoh's magicians are also able to do this, though Moses' staff devours the others. After this, Yahweh begins inflicting the Plagues of Egypt on the Egyptians for each time that Moses goes to Pharaoh and Pharaoh refuses to release the Israelites.
Pharaoh finally agrees to let the Israelites go after his firstborn son is killed.
Moses, in Midian, goes to Mount Horeb, where Yahweh appears in a Burning Bush and commands him to go to Egypt to free the Hebrew slaves and bring them to the promised land in Canaan.The pharaoh also orders the slaughter at birth of all male Hebrew children.