Moshe was still worried, and asked HaShem what HaShem's name was. He didn't think the people would believe him if he just said "your fathers' G-D sent me." He was sure that they would ask for HaShem's name. HaShem answered "Eh'ye Asher Eh'ye," (ask your rabbi for help understanding this).

Moshe still had trouble accepting that he had to go to Egypt and tell the Pharaoh to let the Children of Israel go. He didn't believe that anyone would listen to a shepherd from Midian.

HaShem showed Moshe a "sign" that he could show others, using his staff, and other signs that were designed to "prove" to doubters that Moshe had been sent by HaShem to get the Children of Israel out of Egypt.

Still afraid, Moshe said that he couldn't talk to people. He asked that HaShem pick someone else. HaShem then told Moshe that Aaron, Moshe's brother was coming to meet Moshe and that Aaron would repeat what HaShem told Moshe to tell the people, so that Moshe didn't have to talk in public.

Moshe left his father-in-law and went to Egypt. HaShem explained to Moshe that Pharaoh would not be willing to just say, "OK, the people can go!"

Tzipora circumcised Gershon, their son one night on the road on the way to Egypt.

Aaron met Moshe on the road and the two of them went to Egypt. First they gathered all the elders of the Children of Israel and spoke to them and showed them the signs that HaShem had told them to show.