"This mighty weapon became known as the blade of evil's bane, or the Master Sword." (A Link to the Past manual, pg. 5)
"It is none other than the Master Sword... The blade of evil's bane." — King of Red Lions (The Wind Waker)
"Our world is one of balance... Just as there is light to drive away darkness, so, too, is there benevolence to banish evil. Head for the sacred grove that lies deep within the lands guarded by the spirit Faron. There you will find the blade of evil's bane that was crafted by the wisdom of the ancient sages...the Master Sword. The Master Sword is a sacred blade that evil can never touch. Evil cloaks you like a dark veil... and that blade is the only thing that can cleave it." — Zelda (Twilight Princess)
"You got the Master Sword! The legendary blade with the power to repel evil...once wielded by the legendary hero himself!" — In-game description (The Wind Waker)
"It is none other than the Master Sword... The blade of evil's bane. It is the only sword that can banish Ganon from the world above!" — King of Red Lions (The Wind Waker)
"The Master Sword is a sacred blade which evil ones may never touch...." — Rauru (Ocarina of Time)
"The blade of evil's bane. Those with evil hearts cannot touch it." — In-game description (Twilight Princess)
"The Temple of Light, situated in the very center of the Sacred Realm, is the last stronghold against Ganondorf's evil forces. The Master Sword--the evil-destroying sword that you pulled out of the Pedestal of Time--was the final key to the Sacred Realm." — Rauru (Ocarina of Time)
"There can be no doubt. The sacred flames have purified this blade. Well done, [Link]. That sword holds tremendous power. That power is a sacred force. It is a divine power left to us by the gods of old. The same power that is spoken of in the Ballad of the Goddess." — Impa (Skyward Sword)
"You cannot defeat me with a blade that does not sparkle with the power to repel evil!" — Ganon (The Wind Waker)
"For an age, I offered my prayers here in the Earth Temple, praying that the power to repel evil would ever remain within the Master Sword."— Laruto (The Wind Waker)
"You got the Master Sword! The legendary blade with the power to repel evil...once wielded by the legendary hero himself!" — Item description (Twilight Princess)
"By the way, boy... When you drew that sword of yours out of its pedestal... Did you by chance notice how all the monsters frozen in time down there suddenly began stirring again? Do you understand precisely what that means? ...I highly doubt you do. Foolish child. While that sword is indeed the blade of evil's bane, at the same time, it has long played another role... You see, it is also a sort of key... a most wretched little key that has kept the seal on me and my magic intact! By withdrawing the blade, you have broken that seal..." — Ganondorf (The Wind Waker)