Misinterpretations often reduce the passage to a mere scolding for the disciples' forgetfulness about bread, ignoring the symbolic warning against false religious teachings; some take 'leaven' literally to prohibit yeast in all bread-making or broadly condemn any structured religion, detached from the Pharisees' and Sadducees' specific errors like hypocrisy and unbelief, while others overlook the emphasis on spiritual understanding in favor of superficial legalism.
Matthew 16:11
King James Version (1769)
11 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?
Jesus rebukes his disciples for their lack of spiritual perception, explaining that his warning about the 'leaven' of the Pharisees and Sadducees does not concern literal bread but their corrupting doctrines, hypocrisy, and legalistic traditions that subtly influence and spoil true faith, much like leaven permeates dough, calling believers to discernment and reliance on divine revelation over material concerns.