Confidence is something people admire, even subconsciously.
there was an experiment which showed this on TV recently. A group of about 12 to 15 people were in a room with two doors. They were told that there would soon be a fire alarm and they had to leave by one door. What they were not told was that three of them were already primed to leave by the wrong door. When the alarm was sounded over half the people followed the planted people out of the wrong door.
We will follow the confident, even if they are wrong, even when we’ve had instructions to do the opposite. Which is why confidence tricks work, we implicitly trust people who are confident.
But Moses said to the Lord, “Oh, my Lord, I am not eloquent, either in the past or since you have spoken to your servant, but I am slow of speech and of tongue.” Then the Lord said to him, “Who has made man’s mouth? Who makes him mute, or deaf, or seeing, or blind? Is it not I, the Lord? Now therefore go, and I will be with your mouth and teach you what you shall speak.” But he said, “Oh, my Lord, please send someone else.” Exodus 4:10-13 ESV Anglicised.
God chose someone who was not confident in speaking to be the spokesman for what would become a nation. Mad choice, at least by modern human standards. So why did God choose Moses?
I don’t think we, as Christians, can improve on the standard Rabbinic answer. God chose Moses because he was trustworthy. The first time God spoke to Moses, he did what God said.
Now consider this:
But God chose what is foolish in the world to shame the wise; God chose what is weak in the world to shame the strong; 1 Corinthians 1:27
Now that can’t be right, can it? Who would follow someone like that? Wouldn’t it be better to have leaders who are strong, self confidant. People who look like they know where they are going. Human nature tells us these are the people to follow, even if they are going out of the wrong door.