Matthew 12:36-37 is often misunderstood out of context to mean that all of our sins ("every careless word") will be put on display for all to see on judgment day. This verse, in context, is spoken to self-righteous Pharisees who attributed Jesus' miracles to Satan…it was about their rejection of God's work—not a universal principle that our sins will be publicly displayed.
* Without Context.
There are some Christians who say that those who don’t believe the Bible or trust in Jesus, “just need to read the bible,” but what happens if they do and it has the opposite effect? There are many things in the bible that are written that are hard to understand without having a clear cultural understanding of the context in which it was written; many Christians even assume the Bible says things that it does not because we fail to understand context. Cultural changes over time can lead to shifts in the way we use certain words, and this makes a difference when reading/translating texts of the Bible. There are a lot of people who do not know or understand the Bible and yet they claim it is filled with nonsense, it is why study of the Bible is important for us…because as I said ultimately the Bible is about Jesus. It shows us who we are and who He is in His person.