How is it that you fail to understand that I did not speak about bread? Beware of the leaven of the Pharisees and Sadducees.”
Christ speaks of spiritual things in earthly pictures, and His disciples hear only bread and butter. They forgot provisions because their minds were filled with better things, which is no small mercy. But mark this: the leaven of the Pharisees, their corrupt principles spreading like yeast through dough, is far more dangerous than an empty pantry, and disciples stand most in peril from hypocrites who cloak their poison in piety.
AI summary
Commenting on Matthew 16:5-12
How is it that ye do not understand,.... That you should be so senseless and void of thought, after such instances, as to imagine, that I concerned myself about what bread you brought with you; one would think you could not but know, that I spake it not to you concerning bread, taken in a literal sense; but must be thought to speak figuratively and...
How is it that ye do not understand that I spake [it] not to you concerning bread, that ye should beware of the leaven of the Pharisees and of the Sadducees? (f) A demand or question joined with wonder. (g) "Spake" for commanded.