Charles Ellicott Commentary John 12:4

"But Judas Iscariot, one of his disciples, that should betray him, saith," — John 12:4 (ASV)

Then says one of his disciples, Judas Iscariot.—Compare Notes on John 6:70-71. St. Matthew tells us that the question was asked by “the disciples;” St. Mark, that it was asked by “certain persons;” St. John remembers that it was Judas who spoke, and he remembers that his words were characteristic of the man (John 12:6). He implies by the form in which he relates these words, that he spoke for himself, and that the others did not join in his feeling.