'Beware' in the Bible

In the mean time, when the many thousands of the multitude were gathered together, insomuch that they trod one upon another, he began to say unto his disciples first of all, Beware ye of the leaven of the Pharisees, which is hypocrisy.

Beware of the scribes, who desire to walk in long robes, and love salutations in the marketplaces, and chief seats in the synagogues, and chief places at feasts;