What is the summary of exodus chapter 4 and 5?

Moses fears that the Israelites will bot believe that he ha seen god and therefore will not listen to him. God tells him to show two miracles to prove that he has seen god. Those two are two put his staff on the ground and it will turn into a snake and the other is to put his hand in his cloak which will turn white. Moses than asks god what to do if they do not believe that so he tells him to get water out of the river which will turn into blood.Moses does not want to be the one to do this and this angers god, so he gets his brother Aaran to help.