These two articles are critical of the Insider Movement (or C-5 level of contextualization) and I agree with these reviews that the Insider Movement and C-5 level of Contextualization is wrong, unBiblical, and deceptive.
These are two very good reviews of a book on the Insider Movement approach to evangelism and church planting among Muslims in their own culture and countries. I agree with their analysis of the Insider’s Movement.
1. Book Review of Understanding Insider Movements at Biblical Missiology. (Fred Farokh – he is a former Muslim from Iran.)
2. Book Review of Understanding Insider Movements at The Gospel Coalitiion. (Ayman S. Ibrahim – I think he is a former Muslim also.)
See my earlier article – “An Introduction to the Contextualization Controversy”