Moses had failed, and he considered himself a failure. One can fail without being a failure, but Moses hadn't learned this yet. He was in Midian, running away, running away from his failure, and (although he really didn't mean to, I think) he was also running away from God.

But God wouldn't let him go. High in the mountains of Midian, God set a bush on fire. Nothing really remarkable about a bush burning - lightning caused bushes to …