Secularization—that is, the gradual conformity of our thinking, beliefs, commitments, and practices to the pattern of this fading age—is not just something that happens to the church; it is something that happens in the church. In fact, it’s difficult to think of secularism as anything other than a Christian heresy.
Michael S. Horton, The Gospel Commission: Recovering God's Strategy for Making Disciples
gospel, heresy, secularism