It would be an interesting exercise to ask a group of people who are biblically literate what they think is the scariest verse in the Bible. My expectation would be that some passage in the Apocalypse would come to mind. However, I have another opinion on the subject. I think the scariest verse in the Bible may be Isaiah 1:15, “When you spread out your hands in prayer, I look the other way; when you offer your many prayers, I do not listen . . .” (NET Bible) I think there is nothing worse than being ignored, treated as if your words and person are of no account. For me, the idea of being ignored by God, of praying without hope of being heard is the scariest of all thoughts. Any problem can be overcome if God is listening. Just search the Psalms, for example, for the word “hear” and see how often the Psalmist pleads with God to hear him, or confesses his faith that God does hear him. This is the great comfort for all biblical believers; that God hears and is attentive. This is why Jesus offers the comforts that he does by saying we are more valuable than the sparrows, and God takes note of each one of these (Matthew 10:29-31). To be truly heard is to be respected and loved. To be ignored is to be disrespected and perhaps hated, or simply not considered at all. We have all, probably, been ignored by other people in our lives, and it is painful, sometimes intensely so. But to be ignored by God is the same as being cast to the outer darkness. That is why I think Isaiah 1:15 may be the scariest verse in the Bible.