"And Moses said unto God, Who am I, that I should go unto Pharaoh, and that I should bring forth the children of Israel out of Egypt?" (Exodus 3:11)
Moses had made a mess of his life. He was born a slave, and became a prince. But then, he committed murder, and had to flee for his life from Egypt.
For the next forty years, he tended sheep in the wilderness for his father-in-law. I guess he thought that was all he was supposed to be the rest of his life. And, I think he was content doing it.
But, out the blue, God came to him in that wilderness. Moses saw a bush that was on fire, yet it did not burn up! It was like a beacon, a torch that shined brightly on the landscape. As he approached the bush, God spoke unto him, and called him to fulfill his destiny, and God's plan for his life.
Moses' response was, "...Who am I...?"
I believe that is the natural response of most human beings when they are asked to do something significant. Because:
1) We know our past failures. Moses thought, "I had the opportunity of a lifetime, and blew it! I messed it all up!"
2) We know our position in society. Moses thought, "Pharaoh is the most powerful man on earth, and I am a shepherd in the middle of nowhere."
3) We know our limitations. Moses thought, "What can one man do against an army?"
4) We know people. "Moses thought, "Those people won't listen to somebody like me!"
5) We know our plans. Moses thought, "I am happily married with kids, and I have a good life here with my family and friends. Why should I give all of this up?"
All of that may be true, but you haven't figured God into the equation, though. God changes people and circumstance. Look at the bush! It burned, but did not burn up! It did not do what it was supposed to do in that circumstance! GOD USED A BUSH, for Pete's sake! Do you think He can't use you?
Each of us will have doubts about the assignment that God gives us. It is a natural thing, for the same reasons that Moses doubted his abilities. We all ask, "Who I am?"
Here's who you are:
1) If you have accepted Jesus as your Savior, you are God's adopted child, saved to the uttermost, and bound for glory!
2) You have a shady past, but God has forgiven you of that.
3) You are a person that was dying of thirst, and have found a fountain of living water. And you are trying to lead others who are dying of thirst to that fountain.
4) You are a flawed human being that still makes mistakes, but have trusted God to use you anyway. And He will!
5) You are a person that may feel unable, but you have made yourself available. (God is not looking for ability! He is looking for availability!)
This is who you are! So, just trust God to make do with what He has to do with. And it will all work out.
From my heart to your heart.