Jesus besought His Father in prayer, saying, “Neither pray I for these alone, but for them also which shall believe on me through their word; that they all may be one; as thou, Father, art in me, and I in thee, that they also may be one in us: that the world may believe that thou hast sent me. And the glory which thou gavest me I have given them; that they may be one, even as we are one” (John 17:20–22).

We can have that glory when we are united. The inspired psalmist observed, “Behold, how good and how pleasant it is for brethren to dwell together in unity! It is like the precious ointment upon the head, that ran down upon the beard, even Aaron’s beard: that went down to the skirts of his garments; as the dew of Hermon, and as the dew that descended upon the mountains of Zion: for there the Lord commanded the blessing, even life for evermore” (Psalm 133).

As important as unity is, the truth cannot be surrendered in order to answer the prayer of Christ that we all be one. This would be like committing the same mistake as Abraham did when he thought he was fulfilling the divine plan by compromising God’s principle with Hagar (Genesis 16:1, 2). So, instead of attempting the ludicrous task of trying to carry out God’s will by breaking God’s law, we need instead to remain firm to the truths that the Lord has plainly revealed.

“Through the Holy Spirit, Christ will open more clearly to those who will believe on Him that which He has inspired holy men to write concerning the truth. And it is thus that the unity for which Christ prayed is to be effected. We are to receive sanctification through obedience to the word and the Spirit of truth.

“We cannot surrender the truth in order to accomplish this union; for the very means by which it is to be gained is sanctification through the truth. Human wisdom would change all this, thinking this basis of union too narrow. Men would effect a union through conformity to popular opinions, through a compromise with the world. But truth is God’s basis for the unity of His people.”3

“Our churches are becoming enfeebled by receiving for doctrines the commandments of men. Many are received into the church who are not converted. Men, women, and children are allowed to take part in the solemn rite of baptism without being fully instructed in regard to the meaning of His ordinance. Participation in this ordinance means much, and our ministers should be careful to give each candidate plain instruction in regard to its meaning and its solemnity. Our church members see that there are differences of opinion among the leading men, and they themselves enter into controversy regarding the subjects under dispute. Christ calls for unity. But He does not call for us to unify on wrong practices. The God of heaven draws a sharp contrast between pure, elevating, ennobling truth and false, misleading doctrines. He calls sin and impenitence by the right name. He does not gloss over wrongdoing with a coat of untempered mortar.”4

What happens when we don’t see eye-to-eye? What if there are wrong practices?

1. First, we must study and reason together.

“Come now, and let us reason together, saith the Lord: though your sins be as scarlet, they shall be as white as snow; though they be red like crimson, they shall be as wool. If ye be willing and obedient, ye shall eat the good of the land: but if ye refuse and rebel, ye shall be devoured with the sword: for the mouth of the Lord hath spoken it” (Isaiah 1:18–20).

2. Ultimately, if there is no change:

“Be ye not unequally yoked together with unbelievers: for what fellowship hath righteousness with unrighteousness? and what communion hath light with darkness? And what concord hath Christ with Belial? or what part hath he that believeth with an infidel? And what agreement hath the temple of God with idols? for ye are the temple of the living God; as God hath said, I will dwell in them, and walk in them; and I will be their God, and they shall be my people. Wherefore come out from among them, and be ye separate, saith the Lord, and touch not the unclean thing; and I will receive you, and will be a Father unto you, and ye shall be my sons and daughters, saith the Lord Almighty” (2 Corinthians 6:14–18).

“But now I have written unto you not to keep company, if any man that is called a brother be a fornicator, or covetous, or an idolater, or a railer, or a drunkard, or an extortioner; with such an one no not to eat. For what have I to do to judge them also that are without? do not ye judge them that are within? But them that are without God judgeth. Therefore put away from among yourselves that wicked person” (1 Corinthians 5:11–13).

“Can two walk together, except they be agreed?” (Amos 3:3).

The Reformers in the early centuries suffered anguish in their desire to reconcile faithful adherence to principle and unity with the church they loved: “After a long and severe conflict, the faithful few decided to dissolve all union with the apostate church if she still refused to free herself from falsehood and idolatry. They saw that separation was an absolute necessity if they would obey the word of God. They dared not tolerate errors fatal to their own souls and set an example which would imperil the faith of their children and children’s children. To secure peace and unity they were ready to make any concession consistent with fidelity to God; but they felt that even peace would be too dearly purchased at the sacrifice of principle. If unity could be secured only by the compromise of truth and righteousness, then let there be difference, and even war.

“Well would it be for the church and the world if the principles that actuated those steadfast souls were revived in the hearts of God’s professed people. There is an alarming indifference in regard to the doctrines which are the pillars of the Christian faith. The opinion is gaining ground, that, after all, these are not of vital importance. This degeneracy is strengthening the hands of the agents of Satan, so that false theories and fatal delusions which the faithful in ages past imperiled their lives to resist and expose, are now regarded with favor by thousands who claim to be followers of Christ.”5

What does the Bible say about the way we are influenced by the people or things with which we associate?

“We all, with open face beholding as in a glass the glory of the Lord, are changed into the same image from glory to glory, even as by the Spirit of the Lord” (2 Corinthians 3:18).

By beholding we become changed.

“Every association we form, however limited, exerts some influence upon us. The extent to which we yield to that influence will be determined by the degree of intimacy, the constancy of the intercourse, and our love and veneration for the one with whom we associate. Thus by acquaintance and association with Christ we may become like Him, the one faultless Example.”6

This also works negatively:

“We are not to associate with the ungodly and partake of their spirit, for they will lead the heart away from God to the worship of false gods. The steadfast soul, firm in the faith, can do much good; he can impart blessings of the highest order to those with whom he associates, for the law of the Lord is in his heart. But we cannot willingly associate with those who are trampling upon the law of God, and preserve our faith pure and untarnished. We shall catch the spirit, and unless we separate from them, we shall be bound up with them at last, to share their doom.

“It was by associating with idolaters and joining in their festivities that the Hebrews were led to transgress God’s law and bring His judgments upon the nation. So now it is by leading the followers of Christ to associate with the ungodly and unite in their amusements that Satan is most successful in alluring them into sin. . . . God requires of His people now as great a distinction from the world, in customs, habits, and principles, as He required of Israel anciently.”7

“The warnings given to the Hebrews against assimilating with the heathen were not more direct or explicit than are those forbidding Christians to conform to the spirit and customs of the ungodly. Christ speaks to us, ‘Love not the world, neither the things that are in the world. If any man love the world, the love of the Father is not in him’ (1 John 2:15). ‘The friendship of the world is enmity with God; whosoever therefore will be a friend of the world is the enemy of God’ (James 4:4). The followers of Christ are to separate themselves from sinners, choosing their society only when there is opportunity to do them good. We cannot be too decided in shunning the company of those who exert an influence to draw us away from God. While we pray, ‘Lead us not into temptation,’ we are to shun temptation, so far as possible.”8

This means not going to meetings where error is taught. The servant of the Lord has clarified this question:

“The different parties of professed Advent believers have each a little truth, but God has given all these truths to His children who are being prepared for the day of God. He has also given them truths that none of these parties know, neither will they understand. Things which are sealed up to them, the Lord has opened to those who will see and are ready to understand. If God has any new light to communicate, He will let His chosen and beloved understand it, without their going to have their minds enlightened by hearing those who are in darkness and error.

“I was shown the necessity of those who believe that we are having the last message of mercy, being separate from those who are daily imbibing new errors. I saw that neither young nor old should attend their meetings; for it is wrong to thus encourage them while they teach error that is a deadly poison to the soul and teach for doctrines the commandments of men. The influence of such gatherings is not good. If God has delivered us from such darkness and error, we should stand fast in the liberty wherewith He has set us free and rejoice in the truth. God is displeased with us when we go to listen to error, without being obliged to go; for unless He sends us to those meetings where error is forced home to the people by the power of the will, He will not keep us. The angels cease their watchful care over us, and we are left to the buffetings of the enemy, to be darkened and weakened by him and the power of his evil angels; and the light around us becomes contaminated with the darkness.

“I saw that we have no time to throw away in listening to fables. Our minds should not be thus diverted, but should be occupied with the present truth, and seeking wisdom that we may obtain a more thorough knowledge of our position, that with meekness we may be able to give a reason of our hope from the Scriptures. While false doctrines and dangerous errors are pressed upon the mind, it cannot be dwelling upon the truth which is to fit and prepare the house of Israel to stand in the day of the Lord.”9

Does this mean no association with the world at all?

“The question may be asked, Are we to have no union whatever with the world? The word of the Lord is to be our guide. Any connection with infidels and unbelievers which would identify us with them is forbidden by the word. We are to come out from them and be separate. In no case are we to link ourselves with them in their plans or work. But we are not to live reclusive lives. We are to do worldlings all the good we possibly can. Christ has given us an example of this. When invited to eat with publicans and sinners, He did not refuse; for in no other way than by mingling with them could He reach this class. But on every occasion He gave them talents of words and influence. He opened up themes of conversation which brought things of eternal interest to their minds. And this Teacher enjoins us, ‘Let your light so shine before men, that they may see your good works, and glorify your Father which is in heaven’ (Matthew 5:16). On the temperance question take your position without wavering. Be as firm as a rock. Be not partakers of other men’s sins. Acts of dishonesty in business deal, with believers or unbelievers, should be reproved; and if they give no evidence of reformation, come out from among them and be separate.”10

In 1 Timothy 3:15 the apostle Paul refers to the church of the living God as the pillar and ground of the truth. Why? “The word of God is a book of truth. Jesus is a faithful and true witness. The church is the witness and ground of the truth.”11

Through the proclamation of the truth we are drawn into His church. “Very close and sacred is the relation between Christ and His church—He the bridegroom, and the church the bride; He the head, and the church the body. Connection with Christ, then, involves connection with His church.”12

What about faith in Christ? Where do we improve it?

“How then shall they call on him in whom they have not believed? and how shall they believe in him of whom they have not heard? and how shall they hear without a preacher? And how shall they preach, except they be sent? as it is written, How beautiful are the feet of them that preach the gospel of peace, and bring glad tidings of good things! But they have not all obeyed the gospel. For Esaias saith, Lord, who hath believed our report? So then faith cometh by hearing, and hearing by the word of God” (Romans 10:14–17).

Who sends the right preachers? The church, which is organized for service. Because of this important aspect of faith, God is seeking to draw everyone to hear the truth by His preachers in His church.

Jesus explained, “Other sheep I have, which are not of this fold: them also I must bring, and they shall hear my voice; and there shall be one fold, and one shepherd” (John 10:16).

“All who believe are to be gathered into one church.”13

“The church is God’s appointed agency for the salvation of men. It was organized for service, and its mission is to carry the gospel to the world. From the beginning it has been God’s plan that through His church shall be reflected to the world His fullness and His sufficiency. The members of the church, those whom He has called out of darkness into His marvelous light, are to show forth His glory. The church is the repository of the riches of the grace of Christ; and through the church will eventually be made manifest, even to ‘the principalities and powers in heavenly places,’ the final and full display of the love of God (Ephesians 3:10).”14