 Biblical Insights from Harvest with Pastor Greg Laurie. I believe to fail to share my faith can be a sin before God. Let me illustrate. Let's say you're walking down the street and you heard a scream and you looked and there was a house on fire. And someone yelled out, there's a child in there. Now let's say you heard that and walked over and looked at it for a few moments and then just kept walking. Would that be a bad thing?