Mark 9:3

3andκαὶtheτὰgarmentsἱμάτιαof Himαὐτοῦbecameἐγένετοshiningστίλβονταwhiteλευκὰexceedinglyλίανsuch asοἷαa laundererγναφεὺςonἐπὶtheτῆςearthγῆςnotοὐis ableδύναταιthusοὕτωςto whitenλευκᾶναι.

and His garments became radiant, exceedingly white, such as no launderer on the earth is able thus to whiten [them].