The early church needed some structure. Roles and responsibility from inside the church that would allow the apostles to be dedicated to prayer and the preaching of the word. They appointed men that would help. They weren't just normal men. These were men filled with the Spirit. These servants in the church were of "good repute, full of the spirit and wisdom." It was not just to serve tables that God called these men. In chapter seven we see that Stephen was out performing amazing miracles and signs of power. He was causing a scene. There was work to be done. And in the craziness the chief priests and elders get feed up and arrest Stephen. 

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