What the Bible says about vows I take seriously. It says you shall surely pay your vows to God. On the same token, I often make vows in my head to Him. They're many times impulsive and later I come to regret them. If for instance, I made a vow that I later realized wasn't thought through all the way, could I ask Him forgiveness and undo the vow or is that a sin? It seems compulsive and stubborn to keep a foolish vow "just because it was said", rather than repent and learn, but I could be wrong. Perhaps it is unfaithful to God to break any sort of vow because they seem serious according to the Bible. Please let me know thoughts on this!