What warnings does the Bible give about false teachings?

Throughout Scripture, we find harsh warnings about the dangers of false teachings. In Revelation 2:14-15, the Lord addresses the church in Pergamos regarding those who follow the doctrine of Balaam and the Nicolaitans, both of which lead believers away from the truth. Balaam's doctrine teaches compromise with the world, while the Nicolaitans promote immoral living under the guise of grace. These warnings are relevant to our context, as they remind us that deviation from the true gospel leads to spiritual death. The call is for vigilance and discernment, as Paul's exhortation in Galatians 1:8 emphasizes that even if an angel from heaven preaches a different gospel, he should be accursed.