Misinterpretations often treat the warning literally as a dietary rule against leavened bread, overlooking the metaphorical explanation Jesus provides moments later about the teaching of the Pharisees and Sadducees; others limit it to those specific groups without seeing its broader application to any insidious false doctrine or hypocrisy that infiltrates believers, or misconstrue it as endorsing blanket rejection of all Jewish traditions rather than targeting spiritual corruption.
Matthew 16:6
King James Version (1769)
6 Then Jesus said unto them, Take heed and beware of the leaven of the Pharisees and of the Sadducees.
Jesus warns his disciples to beware of the leaven of the Pharisees and Sadducees, using leaven as a metaphor for the pervasive and corrupting influence of their false teachings, hypocrisy, and unbelief, which spread subtly like yeast through dough, urging vigilance and discernment to guard against doctrines that undermine true faith in him.