How do we know false prophets are dangerous?

In verses 15-20 of Matthew 7, Jesus provides a crucial warning against false prophets, indicating that they will appear and lead many astray from the true path. The instruction to 'beware of false prophets' highlights the need for discernment within the church, recognizing that even those in ordained positions can err. The immediate call is to evaluate teachings against Scripture and discern a prophet's authenticity by their fruits—doctrine and behavior. This vigilance is essential for maintaining the integrity of one's faith and avoiding the pitfalls of spiritual deception.