Hi,
I would suggest that you start with what Jesus said to Peter:
Matt 16:23 Jesus turned and said to Peter, "Get behind me, Satan! You are a stumbling block to me; you do not have in mind the things of God, but the things of men."
The new church will become like Satan when it does not have in mind the things of God, but the things of men. When churches use methods and have objectives that look good in the eyes of the world, and not God, and they pursue them, they have become like Satan.
Look carefully at what Jesus said, and the WAY he did things.