2 Peter 2:1

But false prophets arose among the people, just as there will be false teachers among you, who will subtly introduce destructive heresies, even denying the Master who bought them, bringing swift destruction on themselves.  

A false prophet comes to pervert the word of God with false teaching and doctrine. We need to read our Bible and learn the word of God for ourselves. This way, we will not be swayed into false doctrines. When we focus on God and the world, we will ensure we adhere to the truth of God’s word.