What does the Bible say about false teachings?

In 2 Timothy 2:18, the Apostle Paul warns about false teachers Hymenaeus and Philetus, who have claimed that the resurrection has already occurred, thereby upending the faith of some believers. This warning highlights the importance of sound doctrine and the necessity for Christians to cling to the truths of Scripture. Paul emphasizes the critical need for leaders within the church to uphold the gospel message and avoid distractions that lead to ungodliness. Such false teachings not only mislead believers but can also have devastating effects on the community of faith by sowing confusion and leading others astray from the foundational truths of the resurrection and Christ's work.