Chp. 4 verse 2 - chp. 5 verse 22: Hashem gives Moshe signs to show the people. Moshe refuses and G-d gets angry. Hashem tells him that Aaron will be his spokesman. He returns to Midian. He leaves with his family and Zipporah circumcises their newborn son to save his life. Aaron goes out to meet Moshe and they return to Egypt and tell the people what they were commanded to say and are believed. Chp. five, they go to Pharaoh but he refuses to release the people. He increases the burden on the people by making them gather their own straw.