Probably bad...or at least difficult and costly to get out of. This is D&D after all so where this could lead is difficult to predict. We'll most likely have to do something about it later or face a bad ending type consequence but there might also be unexpected ways out like making some sort of deal with a deity or another...but those sorts of things typically come at cost in D&D...some entities might offer to help you out and in exchange they get your soul after you die which you can then then try to work around by finding means to immortality...maybe lichdom, or finding a way to become a god yourself, etc.
