American Standard Version (ASV):
How is it that ye do not perceive that I spake not to you concerning bread? But beware of the leaven of the Pharisees and Sadducees.
King James Version (KJV):
‹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?›