Paul’s meaning is clear: Believers and unbelievers are two very different creatures and cannot work together in the spiritual realm. He called for separation in matters of the work of God, since such cooperation for spiritual benefit is impossible.
We sometimes tend to think of the early church as pristine, pure and untroubled by serious error. The truth is, it wasn’t that way at all.
From the very beginning, the enemies of truth launched an effort to infiltrate and confuse the people of God by mangling the truth and by blending lies with Christian doctrine. Attacks against the truth regularly came not only from persecutors on the outside but also from false teachers and professing believers within the visible community of the church.
That was the case in the Corinthian church, where false teachers brought with them a quasi-Christian syncretism of gospel truth, Jewish legalism and pagan mysticism. They were eager to blend the people of God with the pagan worshipers, and the truth of Scripture with the lies of Satan.
That kind of spiritual blending is exactly what Jude warns against in the third verse of his short epistle. “Beloved, while I was making every effort to write you about our common salvation, I felt the necessity to write to you appealing that you contend earnestly for the faith which was once for all handed down to the saints.” Through the pen of Jude, the Holy Spirit urges us to exercise caution, discernment, courage and the will to contend for the truth.
Notice what we are supposed to be fighting for. It is not anything petty, personal, mundane or ego related. It’s not mere wrangling between competing ideologies. It’s not a campaign to refine someone’s religious creed or win denominational bragging rights. It’s not a battle of wits, or a game of any kind.
What we are called to defend is no less than “the faith which was once for all handed down to the saints.” He’s talking about a serious struggle to safeguard the heart and soul of the truth itself and unleash that truth against the powers of darkness. Compromised truth has no hope of rescuing the eternal souls of men and women who have been unwittingly ensnared by the trap of devilish deception.
This is a battle we cannot wage effectively if we always try to come across to the world as merely nice, nonchalant, docile, agreeable, fun-loving people. We must not take our cues from others who are perfectly happy to compromise the truth whenever possible for “harmony’s” sake. Friendly dialog may sound affable and pleasant. But neither Christ nor the apostles ever confronted serious, soul-destroying error by building collegial relationships with false teachers. In fact, we are expressly forbidden to do that (Romans 16:17, 2 John 10-11).
The appearance of unity, no matter how enticing, is not worth sacrificing the clarity of the gospel.
Infiltrating churches under the guise of tolerance and cooperation is one of Satan’s most cunning ploys. He does not want to fight the church as much as join it. Undiscerning believers who partner in a common spiritual cause with unbiblical forms of Christianity or other false religions open the door wide to satanic corruption. The appearance of unity, no matter how enticing, is not worth sacrificing the clarity of the gospel.
Furthermore, embracing those heretical systems falsely reassures their followers that all is well between them and God, when actually they are headed for eternal damnation. Partnering in a spiritual enterprise with unbelievers helps Satan muddy the doctrinal waters, and it cripples our ability to preach the need for repentance.
Scripture is clear about how we are to respond when the very foundations of the Christian faith are under attack: Our duty is to contend, not compromise.
