To know the only true God, honor and obey Him, and make Him known.
John Travis describes this spectrum as follows:
The C1 – C6 Spectrum compares and contrasts types of “Christ-centered communities” (groups of believers in Christ) found in the Muslim world. The six types in the spectrum are differentiated by language, culture, worship forms, degree of freedom to worship with others, and religious identity. All worship Jesus as Lord and core elements of the gospel are the same from group to group. The spectrum attempts to address the enormous diversity which exists throughout the Muslim world in terms of ethnicity, history, traditions, language, culture, and, in some cases, theology. This diversity means that myriad approaches are needed to successfully share the gospel and plant Christ-centered communities among the world’s one billion followers of Islam. The purpose of the spectrum is to assist church planters and Muslim background believers to ascertain which type of Christ-centered communities may draw the most people from the target group to Christ and best fit in a given context. All of these six types are presently found in some part of the Muslim world.
(Evangelical Missions Quarterly (October, 1998): 407 – 408)
A brief summary of each Christ-centered community described in the spectrum
Missionaries establish a church that is basically identical to wherever they are from. Services are conducted in the language of the missionaries. They call themselves “Christians” and have very little cultural connection to the region where they plant the church.
The same as C1, except the services are conducted in the language of the region.
They have incorporated many non-religious cultural forms of the region into their community, such as dress, art, etc. They still reject any purely Islamic religious elements. They may meet in a traditional church building or in a more religiously neutral location. They call themselves “Christians” but try to have a more contextualized presence in the region.
They are similar to C3, but they incorporate some Islamic religious elements into their community – like avoiding pork, praying in a more Islamic style, using Islamic dress and employing Islamic terminology. They call themselves “Followers of Isa” or something similar. Their meetings are usually not held in traditional church buildings. They are not considered to be Muslims by the Muslim community.
They retain their legal and social identity within their Muslim community. They reject or reinterpret any part of Islamic practices and doctrine that contradict the Bible. They may or may not attend the mosque regularly, and they actively are involved in sharing their faith in Jesus with other Muslims. They may call themselves Muslims who follow Isa al-Masih, or just Muslims. They may be viewed by their community as Muslims that are a little unorthodox.
They keep their faith secret because of an extreme threat of persecution, suffering or legal retaliation. They may worship secretly in small groups. They do not normally share their faith openly and have a 100% Muslim identity.