The history of Christianity has witnessed the decline of many churches. In this sermon on Romans 11:18-22, Dr. Martyn Lloyd-Jones attributes such declines to the drift away from true Christianity's vital principle, justification by faith alone. Dr. Lloyd-Jones urges listeners to learn the lessons from history and guard themselves and their churches against falling back into a system of justification by works. Regarding the churches that hold firm to the principle of justification by faith alone, be prepared to be persecuted by those who don’t. This tendency has been borne out in church history as evidenced by the persecution inflicted on the true church by the Jews and the also the apostate church. Please note that in a rare departure from customary practice, the original editor of the MLJ Trust recordings decided to include the tail end of the last hymn prior to the commencement of the sermon. This was presumably in order to make sense of Dr Lloyd-Jones's opening admonition to his congregation as to the quality of their singing on that particular Friday evening at Westminster chapel!