In this deleted scene showing a longer conversation between master and student, Yoda reveals the amount of time he gained to keep the truth with Luke. In the theatrical footage, when the young Jedi announces Vader has told him about his father, the elderly owner describes it as ‘unlucky.’ “Unfortunately, you were in a hurry to face him! That, unfinished training is yours! The other, unprepared burden is you.” However, in the deleted scene, Yoda also adds, “Obi-Wan could have told you a long time ago, if I let him,” marking another shocking revelation to Luke that his old Jedi friend he knows that too.
While it’s only a single line, it’s certainly an impactful one that, if it stayed, would undermine Luke and Obi-Wan’s conversation immediately following this passage. The way Alec Guinness’s beard-scratching teacher told Luke the truth ‘from a point of view’ was a brilliant moment that might not have landed effectively if Yoda had dropped the ball. Also, there’s the other problem that Yoda says a sentence that’s completely cohesive but doesn’t fit in with the rest of his dialogue. This little cut, however, keeps “Return of the Jedi” intact as a great sci-fi adventure, so re-adding it might not make a difference. You know what they say – if it’s not broken, fix it.
https://www.looper.com/704626/the-deleted-return-of-the-jedi-scene-that-would-have-changed-everything/ The Jedi Scene’s Deleted Return Will Change Everything