Solomon here warns us that since we approach the living God righteous and holy, we ought guard our words and fear if we are unfaithful to the things we have professed or vowed. Is God really that much of a stickler over the things that we say. Pastor Mollenkopf highlights from Ecclesiastes that God isn't being nit-picky, but he is upholding his righteous standard that he expects of all his image-bearers.