We like warnings when bad things happens. If we know about a warning then we can plan for it.
Many people believe they can't know the future, that is true. We can know God and God gives wisdom and knowledge. If a person desire the truth then they will read the Bible. When they read the bible, then they will understand that Jesus is God. If we repent then we receive the Holy Spirit. Then we desire to read the Bible and the Bible gives wisdom.