Oral gospel traditions called the M source for Matthew and the L source for Luke, which may have been a mix of written and oral material (see Two-source hypothesis). Most scholars believe that the author of John's gospel used oral and written sources different from those available to the Synoptic authors – a "signs" source, a "revelatory discourse" source, and others – although there are indications that a later editor of this gospel may have used Mark and Luke. Oral transmission may also be seen as a different approach to understanding the Synoptic Gospels in New Testament scholarship. Current theories attempt to link
All that glitters is not gold Mayfield's "That's What Mama Say". Neil Young uses the saying in his song "Don't Be Denied" ("Well, all that glitters isn't gold, I know you've heard that story told.") from his 1973 album "Time Fades Away" to express his "realization that even success wouldn't make him happy", even after he obtained fame and money. Both "Stairway to Heaven", by Led Zeppelin, and "All-Star", by Smash Mouth, use the phrase "All that glitters is gold." This is in contrast to the original the phrase, instead proposing that merits are surface level. All that glitters is not gold "All that glitters is