John gave three marks of false teachers who are controlled by the spirit of the antichrists: They depart from the fellowship, they deny Jesus as the Messiah, and they draw the faithful away from Jesus. He encouraged believers to protect themselves against the spirit of the antichrists by depending on the indwelling presence of the Spirit, knowing the truth, and remaining in fellowship with Jesus. We can protect ourselves from error and deception by knowing the false but relying on the Truth, Jesus Christ. The devil may add a few grains of truth to what is false.