The first excuse Moses gave god, was that he could not speak as he had a stuttering problem. But god told him that his brother Aaron would do the talking for him.
pray
Moses' strength is to face danger, face pharaoh, and had the right to speak God's words for God.
yes
Through the Burning Bush.
That he does not speak well.
Moses was looking after the flocks of sheep, when God did speak to him, he attracted Moses while talking to him from te burning bush and asking him to go to Pharaoh.
Moses went to Mount Sinai to speak to God, and collect the ten commandments.
Oh yes he did speak to many other people beside Moses.. They were the major and minor prophets.
As Moses was stammering god told Moses that Aaron would speak for him, and Aaron was Moses helper to the promised land.
The first time God speaks to Moses, Moses hears the voice of God coming from a burning bush that is not comsumed by the flames
It is considere dimportant as God came down to earth and to speak and choose Moses from the burning bush.