God uses broken things. It takes broken soil to produce a crop, broken clouds to give rain, broken grain to give bread, broken bread to give strength. It is the broken alabaster box that gives forth perfume. It is Peter, weeping bitterly, who returns to greater power than ever.
It is one of the ironies of the ministry that the very man who works in God's name is often hardest put to find time for God. The parents of Jesus lost Him at church, and they were not the last ones to lose Him there.
Sometimes your medicine bottle has on it, 'Shake well before using.' That is what God has to do with some of His people. He has to shake them well before they are ever usable.