The Sword and the Ring

There's something about the magic of the sword of griffon door Where if you aren't actively demonstrating the qualities that definegriffon door house then either the sword Won't work for you or you won't be able to use it for anything. When harry gets this close to the sword that can destroy the locket the locket starts Trying to murder him so he can't get to the sword and i'm wondering Dumbledore also used the sword to break open the ring So could the bit of soul that existed inside the ring not tell that the sword was about to be used to destroy it Or was it's only defense the fact that it had put the curse in dumbledore's hand