2 Peter 1:19-21, 2 Corinthians 11:13, Hebrews 1:1-2
This is by no means the first time the Truth War has intruded into the church. It has happened in every major era of church history. Battles over the truth were raging inside the Christian community even in apostolic times, when the church was just beginning. In fact, the record of Scripture indicates that false teachers in the church immediately became a significant and widespread problem wherever the gospel went. Virtually all the major epistles in the New Testament address the problem in one way or another. The apostle Paul was constantly engaged in battle against the lies of “false apostles [and] deceitful workers [who transformed] themselves into apostles of Christ”
(2 Corinthians 11:13). Paul said that was to be expected. It is, after all, one of the favorite strategies of the evil one: “No wonder! For Satan himself transforms himself into an angel of light. Therefore it is no great thing if his ministers also transform themselves into ministers of righteousness” (vv. 14-15).
It takes a willful naïveté to deny that such a thing could happen in our time. As a matter of fact, it is happening on a massive scale. Now is not a good time for Christians to flirt with the spirit of the age. We cannot afford to be apathetic about the truth God has put in our trust. It is our duty to guard, proclaim, and pass that truth on to the next generation (1 Timothy 6:20-21). We who love Christ and believe the truth embodied in His teaching must awaken to the reality of the battle that is raging all around us. We must do our part in the ages-old Truth War. We are under a sacred obligation to join the battle and contend for the faith.
In one narrow respect, the driving idea behind the Emerging Church movement is correct: The current climate of postmodernism does represent a wonderful window of opportunity for the church of Jesus Christ. The arrogant rationalism that dominated the modern era is already in its death throes. Most of the world is caught up in disillusionment and confusion. People are unsure about virtually everything and do not know where to turn for truth. However, the absolute worst strategy for ministering the gospel in a climate like this is for Christians to imitate the uncertainty or echo the cynicism of the postmodern perspective–and in effect drag the Bible and the gospel into it. Instead, we need to affirm against the spirit of the age that God has spoken with the utmost clarity, authority, and finality through His Son (Hebrews 1:1-2). And we have the infallible record of that message in Scripture (2 Peter 1:19-21).
Article source: http://www.gty.org/Resources/Articles/A309