ok sorry misread the followers so i was wrong on finding the oath. I thought the blade recruits said pledged in past tense meaning they they pledged an oath to slay dragons, but they say that they pledge meaning like right now to rid the dragons. But it is of my opionion that killing the dragosn of tamriel is in the blade's oath, but no one knows because theres no info on the actual oath or what it entails.
I don't remember taking an oath in MW or Ob. How do we know the stuff Delphine is getting followers to vow isn't something she created?
Im of the mind that its not somethign delphie created, but that it was in there at the beginning, and ill explain why i think that. The blades were formed when they met tiber septim, and they folowed him because he was the dragonborn, the ultimate dragonslayer. Now at the time there was only one dragon alive but tiber had put it to work by guarding soemthign important, cant remember for the life of me. That dragonborn was an emporer, and im of the mind that when they found paars location, they were denied because of who they had to go thru to get to paar. If the blades went thru the greybeards to get to paar either 2 thing would happen, one they cause an uproar by killing the greybeards and theresa huge political fiasco in skyrim which problemly would have caused a civil war, or two the blades woulda been shouted apart and still woulda caused a huge fiasco. So either way, with the emporer at the time conquering and stabilizing nations, this would have been counterproductive and political suicide for tiber, and tiber was alot smarter than that. he had more important work for the blades to do in his opionion. The blades did slay the other dragons that they found, but why were they denied paar? No one really knows, but the greybeards being there and how respected they are in all of skyrim can be the reason. As far as why the blades didnt quit tiber when he refused and all the others emporers could have been that the emporers were doing their job as in ruling and the blades going thru the greybeards woulda gone against the emporers role and job by highly possibly having skyrim break away or go to war with the empire. I mean u get rid of talos in skyrim and theres a civil war with 2 different opionions on the severarity, BUT go against the greybeards which EVERYONE respects and honors? total chaos. Now our dragonborn is not an emporer and we can bypass the whole fiasco of having to battle the greybeards. So at the time we get the demand to kill paar we have all the info we need form boths side on how to defeat alduin, and killing paar does not interfer or mess up our goal of slaying alduin, so if there is an ancient oath of slaying all dragons in tamriel then we would be going against that oath since theres nothign to stop us from slaying paar. reason why i believe that slaying dragons is part of the oath, is that the blades keep records, lore, and intel on the dragons and even the recipes of potions to use to defend against dragosn all the years after there hasnt been a single dragon for thousands of years, ud figure if it wasnt part of thier aoth or part of thier rules int he society that it would have been done away with long ago. It was so important that they spent a freaking fortune on the wall that depected thier prophisy, one that esbern said that every blade member knew by heart, so it is depected that something on the dragons were part of the blades up until the thalmor started wiping them out. Like i said, i ahve no proof and no one knows, but it is hinted quite a bit that its a very good possiblity thats it part of it. And if it is, then they would be goign aginst the oath since theres nothing stopping or hndering the dragonborn from killing paar and by leaving him alive, they are in fact helping keeping a dragon alive for no reason but to keep it alive.
And if there is an oath, seeing how the blades originally came for the land where the dragons were the masters at one time and the dragon war wasnt that long ago, problemly at the time the oath was created was because during the time of the oaths creation the memories were still fresh on what had been done, and for a good bit of the time ALL the dragons had been part of putting down the moral's rebellion. So while we may not see the significance of the crimes done wayyyy in the past, the oath may in fact be an honoring and revenge for the dead thus important for all the blade members that come along. again just speculation, but the oath killing dragons if there is one in the baldes oath by what we can see from delphie and esbern came from the dragonguard that was carried over into the philosphy of the blades.