Have you ever wanted to absolutely ensure you will never enter the Kingdom of Heaven?
This seems like a straightforward task. Surely you just have to do something sufficiently evil? Yes, this might be hard work and time-consuming, but you would think it would get the job done, right?
The problem is, Jesus (and by extension the New Testament Abrahamic God) are very forgiving. In many modern Christian traditions, no matter what horrifying atrocities you commit, you can come to Christ and ask for forgiveness and Saint Robert's your uncle, you are good to go.
Enter Matthew 12.