18do not be arrogant toward the branches; but if you are arrogant, remember that it is not you who supports the root, but the root supports you. 19You will say then, “Branches were broken off so that I might be grafted in.” 20Quite right, they were broken off for their unbelief, but you stand by your faith. Do not be conceited, but fear; 21for if God did not spare the natural branches, He will not spare you, either. 22See then the kindness and severity of God: to those who fell, severity, but to you, God’s kindness, if you continue in His kindness; for otherwise you too will be cut off.
18Boast not against the branches. But if thou boast, thou bearest not the root, but the root thee. 19Thou wilt say then, The branches were broken off, that I might be graffed in. 20Well; because of unbelief they were broken off, and thou standest by faith. Be not highminded, but fear: 21For if God spared not the natural branches, take heed lest he also spare not thee. 22Behold therefore the goodness and severity of God: on them which fell, severity; but toward thee, goodness, if thou continue in his goodness: otherwise thou also shalt be cut off.
In this sermon on Romans 11:18–22 titled “Vital Principles,” Dr. Martyn Lloyd-Jones urges listeners to always seek the truth and facts. Throughout history, people have gone astray because they did not seek the truth and history teaches lessons that are applicable for today. Scripture is the same way and can be looked to for truth. Dr. Lloyd-Jones outlines three points regarding truth. First, God’s people always have a tendency to fall away from the truth and this is seen throughout history and in Scripture. Second, the cause of this is because they forget the first and original principles. Every problem in this world is because people forget. Lastly, those who fall away are the ones who most persecute those who hold true to the principles. The Jews, specifically, are a people group who fell away and began to persecute those who believed the true gospel. Dr. Lloyd-Jones warns against those who do not actively pursue truth.
Dr. Martyn Lloyd-Jones
Dr. Martyn Lloyd-Jones (1899-1981) was a Welsh evangelical minister who preached and taught in the Reformed tradition. His principal ministry was at Westminster Chapel, in central London, from 1939-1968, where he delivered multi-year expositions on books of the bible such as Romans, Ephesians and the Gospel of John. In addition to the MLJ Trust’s collection of 1,600 of these sermons in audio format, most of these great sermon series are available in book form (including a 14 volume collection of the Romans sermons), as are other series such as "Spiritual Depression", "Studies in the Sermon on the Mount" and "Great Biblical Doctrines". He is considered by many evangelical leaders today to be an authority on biblical truth and the sufficiency of Scripture.