'Beware' in the Bible

“Beware of false prophets who come to you in sheep’s clothing but inwardly are ravaging wolves.

Because people will hand you over to sanhedrins and flog you in their synagogues, beware of them.

Then Jesus told them, “Watch out and beware of the yeast of the Pharisees and Sadducees.”

Why is it you don’t understand that when I told you, ‘Beware of the yeast of the Pharisees and Sadducees,’ it wasn’t about bread?”

Then they understood that He did not tell them to beware of the yeast in bread, but of the teaching of the Pharisees and Sadducees.