Christians across a vast denominational range can stand together on the first-order doctrines and recognize each other as authentic Christians, while understanding that the existence of second-order disagreements prevents the closeness of fellowship we would otherwise enjoy. A church either will recognize infant baptism, or it will not. That choice immediately creates a second-order conflict with those who take the other position by conviction.

In recent years, the issue of women serving as pastors has emerged as another second-order issue. Again, a church or denomination either will ordain women to the pastorate, or it will not. Second-order issues resist easy settlement by those who would prefer an either/or approach. Many of the most heated disagreements among serious believers take place at the second-order level, for these issues frame our understanding of the church and its ordering by the Word of God.

Third-order issues are doctrines over which Christians may disagree and remain in close fellowship, even within local congregations. I would put most of the debates over eschatology, for example, in this category. Christians who affirm the bodily, historical, and victorious return of the Lord Jesus Christ may differ over timetable and sequence without rupturing the fellowship of the church. Christians may find themselves in disagreement over any number of issues related to the interpretation of difficult texts or the understanding of matters of common disagreement. Nevertheless, standing together on issues of more urgent importance, believers are able to accept one another without compromise when third-order issues are in question.

A structure of theological triage does not imply that Christians may take any biblical truth with less than full seriousness. We are charged to embrace and to teach the comprehensive truthfulness of the Christian faith as revealed in the Holy Scriptures. There are no insignificant doctrines revealed in the Bible, but there is an essential foundation of truth that undergirds the entire system of biblical truth.

This structure of theological triage may also help to explain how confusion can often occur in the midst of doctrinal debate. If the relative urgency of these truths is not taken into account, the debate can quickly become unhelpful. The error of theological liberalism is evident in a basic disrespect for biblical authority and the church's treasury of truth. The mark of true liberalism is the refusal to admit that first-order theological issues even exist. Liberals treat first-order doctrines as if they were merely third-order in importance, and doctrinal ambiguity is the inevitable result.

Fundamentalism, on the other hand, tends toward the opposite error. The misjudgment of true fundamentalism is the belief that all disagreements concern first-order doctrines. Thus, third-order issues are raised to a first-order importance, and Christians are wrongly and harmfully divided.

Living in an age of widespread doctrinal denial and intense theological confusion, thinking Christians must rise to the challenge of Christian maturity, even in the midst of a theological emergency. We must sort the issues with a trained mind and a humble heart, in order to protect what the Apostle Paul called the "treasure" that has been entrusted to us. Given the urgency of this challenge, a lesson from the Emergency Room just might help.

 This article was originally published on May 20, 2004. New daily columns will resume on August 1, 2005.

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R. Albert Mohler, Jr. is president of The Southern Baptist Theological Seminary in Louisville, Kentucky. For more articles and resources by Dr. Mohler, and for information on The Albert Mohler Program, a daily national radio program broadcast on the Salem Radio Network, go to www.albertmohler.com . For information on The Southern Baptist Theological Seminary, go to www.sbts.edu . Send feedback to mail@albertmohler.com .

See also the latest entries on Dr. Mohler's Blog .