Transformation is the key to the growth of the church and mission. Transformation is a positive change toward Christ that marks believers’ life, as indicated by Paul’s exhortation in Romans 12:2. The church refers to the people who believe in Christ so they are renewed by the power of the Holy Spirit. That transformation or renewal empowers the church to function as the light of the world, as a missional community through the power of the Holy Spirit. This article seeks to present the strong correlation between the spiritual transformation of the church by the power of the Holy Spirit with her function as a missional community. This article elaborates the meaning of transformation in the New Testament, the meaning of transformation from the...