From Beginning with Moses:
You may have heard the story of the Mennonite Brethren movement. One particular analysis goes like this: the first generation believed and proclaimed the gospel and thought that there were certain social entailments. The next generation assumed the gospel and advocated the entailments. The third generation denied the gospel and all that were left were the entailments…
This article suggests that individuals, churches, movements and institutions that use the name evangelical, and which are therefore claiming an important commitment to the gospel, are all susceptible to the very subtle drift that can take place from proclaiming through assuming to denying the gospel.