'Be on Your Guard' in the Bible

Be on your guard against your fellow men, for they will betray you to courts of law, and scourge you in their Synagogues;

Presently Jesus said to them: "Take care and be on your guard against the leaven of the Pharisees and Sadducees."

How is it that you do not see that I was not speaking about bread? Be on your guard against the leaven of the Pharisees and Sadducees."

Meanwhile the people had gathered in thousands, so that they trod upon one another, when Jesus, addressing himself to his disciples, began by saying to them: "Be on your guard against the leaven--that is, the hypocrisy--of the Pharisees.

Be on your guard! If your brother does wrong, reprove him; but if he repents, forgive him.

"Be on your guard against the Teachers of the Law, who delight to walk about in long robes, and like to be greeted in the streets with respect, and to have the best seats in the Synagogues, and places of honor at dinner.

Be on your guard lest your minds should ever be dulled by debauches or drunkenness or the anxieties of life, and lest 'That Day' should come suddenly upon you, like a snare.

Therefore, be on your guard, remembering how for three years, night and day, I never ceased, even with tears, to warn each one of you.

I urge you, Brothers, to be on your guard against people who, by disregarding the teaching which you received, cause divisions and create difficulties; dissociate yourselves from them.

Do you also, be on your guard against him, for he is strongly opposed to our teaching.

Do you, therefore, dear friends, now that you know this beforehand, be on your guard against being led away by the errors of reckless people, and so lapsing from your present steadfastness;