Biblical Separation: Guarding the Gospel for the Glory of Christ

Originally published on Substack (opens in a new tab) on 26 May 2026.

This article explains the biblical principles of separation from error. Various friends who have attended our church services have at times accused us of being stricter than the Scriptures, and having a divisive spirit. I hope this shows that it is not so. But we desire to separate from error, because we desire to wholly follow the Lord according to His Word.

There is a kind of separation that is sinful. Proud men separate because they love party spirit. Narrow men separate because they cannot bear brethren who differ from them in smaller matters. Suspicious men separate because they imagine danger everywhere. Scripture condemns such a spirit. Jude speaks of those who “separate themselves, sensual, having not the Spirit” (Jude 19). Thomas Manton, preaching on that text, warned that sinful dividing from the church is a work of the flesh, not the fruit of grace.¹

But there is also a separation that is commanded by God. It is not the separation of pride, but of faithfulness. It is not the separation of bitterness, but of obedience. It is not a departure from love, but a defence of love, because true love rejoices “in the truth” (1 Cor 13:6). The doctrine of biblical separation teaches that God’s people must not join hands in religious fellowship with those who deny the fundamental truths of the Christian faith.

C. H. Spurgeon saw this in his day, as he and the Metropolitan Tabernacle seceded from the Baptist Union of Great Britain. He said, “Separation from such as connive at fundamental error, or withhold the ‘Bread of life’ from perishing souls, is not schism, but only what truth, and conscience, and God require of all who would be found faithful.”²

This is not a small matter. A church without separation is like a city without walls, a shepherd without a staff, a house without a door. Anyone may enter, anything may be taught, and the sheep are left exposed. The question is not whether Christians should be loving. Of course they should. The question is this: can love to Christ ever require us to appear indifferent to error about Christ?

1. Separation Begins with Loyalty to God’s Truth

The old covenant repeatedly warned Israel not to enter religious fellowship with idolaters. “Thou shalt make no covenant with them, nor with their gods” (Exod 23:32). Again, “Take heed to thyself, lest thou make a covenant with the inhabitants of the land” (Exod 34:12). When Jehoshaphat joined himself with wicked Ahab, the prophet asked him a searching question: “Shouldest thou help the ungodly, and love them that hate the LORD?” (2 Chron 19:2).

That question still pierces the conscience. Should the church help unbelief look respectable? Should Christians lend credibility to those who deny the Gospel? Should a Bible-believing church act as though truth and error are merely different accents within the same Christian conversation?

The New Testament is even clearer. Paul commands believers to “mark them which cause divisions and offences contrary to the doctrine which ye have learned; and avoid them” (Rom 16:17). The word translated “mark” is from the Greek skopeō, meaning to watch carefully, to keep one’s eye upon. The word “avoid” means to turn away from. This is not rash judgement. It is careful discernment followed by obedient action.

In Ephesians 5:11 we are told, “And have no fellowship with the unfruitful works of darkness, but rather reprove them.” The word “fellowship” carries the idea of sharing, partnership, participation. A Christian may show kindness to all men, but he must not share religious labour with those who overthrow the faith. The word for “reprove” means to expose, to point them out to all, so the ignorant and the unwary are warned of the dangerous teachers.

2. Separation Protects the Gospel

Biblical separation is not first of all about preserving a party name. It is about preserving the Gospel. Paul writes with holy severity: “Though we, or an angel from heaven, preach any other gospel unto you… let him be accursed” (Gal 1:8). He would not yield to false brethren, “no, not for an hour; that the truth of the gospel might continue with you” (Gal 2:5).

That phrase is vital: “that the truth of the gospel might continue with you.” Separation is for continuation. It is for preservation. It is for children not yet born, converts not yet gathered, churches not yet planted, sermons not yet preached. If one generation treats error as harmless, the next generation may swallow it as truth.

This is why the Reformation was not a needless quarrel. The Reformers did not break with Rome because of personality, taste, or national pride. They broke because the Gospel itself was at stake: Scripture alone, Christ alone, faith alone, grace alone, and glory to God alone. These truths distinguished the Reformation from Rome’s system of authority, merit, priestcraft, and sacramentalism.³ Calvin argued that the papal system had corrupted the marks of the true church, especially pure doctrine and the lawful administration of worship.⁴ Ryle later warned that Protestantism must not forget the errors of Romanism or allow the candle of the Reformation to burn dim.⁵

Separation, then, is not spiritual vandalism. It is spiritual conservation, keeping, protecting and promoting that which is good. It keeps the well from being poisoned.

3. Separation Protects the Church

The apostle John gives one of the strongest commands in the New Testament: “If there come any unto you, and bring not this doctrine, receive him not into your house, neither bid him God speed” (2 John 10). He then adds, “For he that biddeth him God speed is partaker of his evil deeds” (2 John 11). The Greek word behind “partaker” is related to koinōnia, fellowship or sharing. To bless the ministry of a false teacher is not a neutral act. It is participation.

This does not mean we may be rude, cruel, or personally abusive. It does mean that we must not knowingly endorse, host, platform, promote, or publicly partner with ministries that deny cardinal truth and relate with those who compromise it. The issue is not whether a false teacher has pleasant manners. Wolves may have soft fur. The Lord Jesus says, “Beware of false prophets, which come to you in sheep’s clothing” (Matt 7:15).

One could even argue from Scripture that separation from false teachers is a vital duty, and that even secondary separation may become necessary when believers knowingly assist or promote those who harm the Gospel and the churches. But we must urge discretion on this point, as with some a kind word of persuasion and appeal is preferable where the error is limited and the person may still be corrected.⁶ This is the right balance. Biblical separation must have both backbone and heart.

Once again Spurgeon clearly defended his separated stance: “Finding ourselves in a community which had no articles of faith, and seeing deadly error rising up, we had no course but to withdraw.”⁷

4. Separation Is Not Loveless

Many object, “But what about unity?” We answer: unity in what? The New Testament calls believers to unity in the truth, not unity at the expense of truth. The early church “continued stedfastly in the apostles’ doctrine and fellowship” (Acts 2:42). Doctrine came first. Fellowship was built upon it.

Dr Martyn Lloyd-Jones made this point powerfully in the twentieth century. His 1966 appeal for evangelical unity was not a call for isolation, but for true evangelicals to stand together outside structures compromised by liberal theology. His concern was not to divide believers, but to gather them on a truthful basis.⁸

True separation is positive. It separates from error unto Christ, from confusion unto clarity, from compromise unto faithful witness, from man-centred religion unto the glory of God. A gardener who pulls weeds is not against flowers. A doctor who removes infection is not against the body. A shepherd who drives away wolves is not against sheep.

So let us be plain. Separation is not the whole of Christianity. It is not the Gospel. It is not a substitute for holiness, prayer, evangelism, love, patience, or humility. But without it, churches become defenceless. A faith that refuses to say “no” to error will soon lose the power to say “yes” to truth.

The church must not be quarrelsome. But neither may she be cowardly. She must speak the truth in love, and she must love the truth enough to stand apart when Christ, Scripture, and the Gospel are denied.

In the next article we will discuss the practical aspects of this doctrine.

You can also listen to Pastor Stuart Olyott’s testimony of the debate between Dr Martyn Lloyd-Jones and John Stott:

“I was there on 18th October 1966, the evening that changed evangelicalism for ever!” - Pastor Stuart Olyott

You can listen to the recording on the original Substack post (opens in a new tab).

Recommended Resources

1. Biblical Separation by Ernest Pickering (Buy (opens in a new tab))
2. Biblical Separation Defended by Gary G. Cohen (Read online (opens in a new tab))
3. Stand for the Truth by Dr Peter Masters (Buy (opens in a new tab))

Footnotes

1. Thomas Manton, The Complete Works of Thomas Manton, sermon on Jude 19. Manton warns that sinful separation from the church may be a fleshly work, showing that biblical separation must be distinguished from schismatic pride. (Christian Classics Ethereal Library (opens in a new tab)) ↩

2. C. H. Spurgeon, “Separation not Schism; or, the Old and New Connexions of General Baptists,” The Sword and the Trowel, March 1888, p. 127. ↩

3. The five solas of the Reformation are commonly summarised as Scripture alone, Christ alone, faith alone, grace alone, and glory to God alone. ↩

4. John Calvin, Institutes of the Christian Religion, Book IV, especially his treatment of the false and true church and the papal system. (Christian Classics Ethereal Library (opens in a new tab)) ↩

5. J. C. Ryle, “Wants of the Times,” in Holiness, warning against Romanism and urging renewed gratitude for the Reformation. (Church Society (opens in a new tab)) ↩

6. Peter Masters, “Secondary Separation: When to Stand Apart from Biblical Error,” Metropolitan Tabernacle. (Metropolitan Tabernacle (opens in a new tab)) ↩

7. “This Must Be A Soldier’s Battle,” The Sword and the Trowel, December 1889. ↩

8. D. Martyn Lloyd-Jones’s 1966 address “Evangelical Unity” was a separatist appeal in the context of British evangelicalism and liberal denominational structures. (galaxie.com (opens in a new tab)) ↩