We might think that truth will be self-evident and will protect itself. In one way, that is so: God’s truth can never change. On the other hand, our understanding of truth and how we respond to it can change. The world, our own fleshly appetites and the devil’s scheming are constantly seeking to distort everybody’s perception of the truth. Wickedness suppresses truth (Romans 1:18). So, when a teacher does not hold fast to the truth, the effect will corrupt many people. Jesus said that false teachers will deceive even those who think they are spiritually secure (Matthew 24:24).