How can Christians discern false teachers according to the Bible?

The Bible warns believers about false teachers in passages such as John 10:1, where Jesus describes them as thieves and robbers. Christians can discern these false shepherds by assessing whether their teachings align with the gospel of free and sovereign grace. Paul instructs in 2 Corinthians 10 that our warfare against false doctrine must be carried out with spiritual weapons, grounding our understanding in Scripture and testing every teaching against the truth of Christ. This discernment is vital to protect the flock from misleading teachings that would lead them away from the true gospel.