In Houses that Change the World, Wolfgang Simson lays out his argument for a third religious reformation - a reformation of the structure of the Christian church. Simson argues that the current church structure is not true to the New Testament model of worship and fellowship:
The Bible absolutely does not teach us to say that a holy crowd gathering on a holy day at a holy hour in a holy sanctuary to participate in a holy ritual performed by a holy man on holy clothes for a holy fee is a New Testament church (36).

The new, yet age-old church structure that Simson proposes to replace the prevailing one is the house church.
THE NEED FOR HOUSE CHURCHES
The irony that today's "Christendom" has tolerated for too long is the enormous gap between God and church. While the majority of so called "unbelievers" in the world believe in God, very few are interested in or attracted to the church as it exists in its traditional structure. This structure is organizational, consisting of a group of usually 20 - 200 attendees, a formal leadership hierarchy, specific programs, set agendas, and a designated building. Simson argues that within such churches, a "fellowship without fellowship" usually emerges. The size and structure of the congregation rarely allows the members to engage in deep community of the kind described in John 13:34-35. Additionally, this structure tends to under-use the spiritual and natural gifts of the people of God. Rather than growing stronger in the faith, the majority of attenders rely solely on the specialized leadership to do the work of the ministry.