Why should Christians reject false teachings?

Jude exhorts believers to contend earnestly for the faith because false teachings pose a serious threat to the integrity of the gospel. The warnings in Jude 4 about certain men creeping in to distort grace show that the church must be vigilant against teachings that may sound appealing but ultimately lead to spiritual ruin. These false teachings often deny the core truths of Christ’s deity and His sufficient atonement. By embracing sound doctrine and being rooted in Scripture, Christians can ensure that they stand firm against deceptive teachings. The importance of sound doctrine cannot be overstated, for it is through the knowledge of truth that believers can discern errors and remain steadfast in their faith.