What I am saying is that God, in His God-ness, doesn't need us to be perfect in order to be useful. In fact, we don't even have to be followers of Christ, or even acknowledge that He is God. BUT if we are His partners then we get to know that we are a part of the greatest love story in the history of time it self.
Let me give an example. In the book of Daniel, King Nebuchadnezzar was a godless man in charge of a very depraved kingdom...yet the Lord used him to promote his servant Daniel to a position of great prominence in the greatest kingdom the world had ever known before. Think of the power Daniel possessed to promote the Kingdom of God.
Here's another, Joseph found himself in prison after a false accusation from an adulterous woman, but prison gave him the strength of character to guide a nation out of famine and into prosperity. He used the woman, and she didn't even know Him.
Obviously we aren't perfect. If we were, there wouldn't be sin in the world...and there would be no need for a savior. BUT if we are honest with ourselves, we are constantly striving to be perfect...to make ourselves something God can use. Now, I am not suggesting that we shouldn't become more like Christ...in fact, that is in truth, our only goal on the planet.
What I am actually proposing, is that if we can just be ourselves in Christ...and walk through life with pure motives and a clean heart, then not only will we be used by God, but we will know it! We will get to participate in the use. We will feel the hands of God in our life and His light will shine through us so brightly that the enemy will be powerless over us, and the world will see the goodness and love of Christ through us.
So in effect, we don't need to worry about whether or not we can be used by God, because He will use whomever He wants to...whenever He wants to. Instead, we should be concerned with knowing His heart and letting the love of Christ shine through us. As we become more like Him and less like this world...His perfect light will pass through us more purely, less adulterated, and touch the world in a way that only perfect love can.
So, who is with me? Who wants to shine so that midnight will be as bright as noonday??