What does the Bible say about avoiding false teachers?

In Romans 16:17-18, the apostle Paul emphasizes the importance of doctrine and warns believers to be vigilant against those who cause divisions and offenses contrary to the teachings they have received. He urges them to avoid such individuals because they do not serve Christ but rather their own interests. This passage reminds us that sound doctrine is vital to the health of the church and the believer's faith, and being discerning about who we listen to is essential for spiritual growth and loyalty to Christ.