Matthew 26:8

His disciples - One of them, viz. Judas. This mode of speaking was common among the Hebrews. So, Matthew 27:44, the thieves also, i.e. one of them. So, Matthew 28:17, some doubted, i.e. one, Thomas. See also Genesis 8:4; Judges 12:7; Nehemiah 6:7, etc. By a figure called among rhetoricians enallag, the plural is put for the singular; it is, however, possible that Judas, who made the objection, was followed in the sentiment by the rest of the disciples.

They had indignation - John says that "Judas expressed" indignation.

Probably some of the others felt indignation, but Judas only gave vent to his feelings. The reason why Judas was indignant was, that he had the "bag" John 12:6 - that is, the "purse," or repository of articles "given" to the disciples and to the Saviour. He was a thief, and was in the habit, it seems, of taking out and appropriating to his own use what was put in for them in common The leading trait of Judas's character was avarice, and no opportunity was suffered to pass without attempting by base and wicked means to make money. In his example an avaricious man may learn the true nature and the effect of that groveling and wicked passion. It led him to commit the enormous crime of betraying his Lord to death, and it will always lead its possessor to guilt. No small part of the sins of the world can be traced to avarice, and many, and many a time since the days of Judas has the Lord Jesus been betrayed among his professed friends by the same base propensity.

Is this waste - This "loss" or "destruction" of property. They could see no use in it, and they therefore supposed it was lost.

26:8 His disciples seeing it, had indignation, saying - It seems several of them were angry, and spoke, though none so warmly as Judas Iscariot.