How do we know false teachers are a threat in the church?

The presence of false teachers is a consistent biblical theme, with warnings appearing throughout the Scriptures. Jude reminds us that such individuals can come from within the church, enticing the faithful away from the truth with deceptive teachings. This reality is further supported by scriptures such as Acts 20:29-30, where Paul warns pastors of the grievous wolves that would not spare the flock after his departure. The challenge lies in recognizing these 'creeping men' who may appear righteous but ultimately seek to lead God's people astray through compromise and worldly motives.