There is a fatal defect in the life of Christ’s church in the twentieth century: a lack of true discipleship - James Montgomery Boice

There is a fatal defect in the life of Christ’s church in the twentieth century: a lack of true discipleship. Discipleship means forsaking everything to follow Christ. But for many of today’s supposed Christians—perhaps the majority—it is the case that while there is much talk about Christ and even much furious activity, there is actually very little following of Christ Himself. And that means in some circles there is very little genuine Christianity. Many who fervently call Him ‘Lord, Lord’ are not Christians (Matthew 7:21)...

There are several reasons that the situation I have described is common in today’s church. The first is a defective theology that has crept over us like a deadening fog. This theology separates faith from discipleship and grace from obedience. It teaches that Jesus can be received as one’s Savior without being received as one’s Lord...Discipleship in not a supposed second step in Christianity, as if one first became a believer in Jesus and then, if he chooses, a disciple. From the beginning, discipleship is involved in what it means to be a Christian....Is ‘faith’ minus commitment a true biblical faith?...If faith without works is dead—how much truer is it that faith without commitment is dead...True faith involves these elements: knowledge...heart response...and commitment, without which ‘faith’ is no different from the assent of the demons who ‘believe...and shudder’ (James 2:19) 

- James Montgomery Boice 

(Christ’s Call to Discipleship pp. 13 - 21).