Moses continues to give God reasons why he’s the wrong choice. He does so five times in chapters 3 and 4, and God gets tired of it in verse 14. There is a strange story about circumcision in chapter 4 which also shows Moses’ lack of obvious qualification. He is about to enter Egypt to lead the nation but has not circumcised his own son. Circumcision was required by God as a sign that Israel belongs to him (Genesis 17:10). Moses couldn’t be an effective spiritual leader in the nation if he was unwilling to lead his family in obeying a simple command.
Have you ever had one of these arguments with God? It seems more than a bit stupid to be telling God his plan is no good. We also see that we should not expect to accomplish great things for God when we are refusing to obey him.