Verses with the word beware in the New Testament (14 verses):

Matthew 7:15
Beware of false prophets, which come to you in sheep's clothing, but inwardly they are ravening wolves.

Matthew 10:17
But beware of men: for they will deliver you up to the councils, and they will scourge you in their synagogues;

Matthew 16:6
Then Jesus said unto them, Take heed and beware of the leaven of the Pharisees and of the Sadducees.

Matthew 16:11
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?

Matthew 16:12
Then understood they how that he bade them not beware of the leaven of bread, but of the doctrine of the Pharisees and of the Sadducees.

Mark 8:15
And he charged them, saying, Take heed, beware of the leaven of the Pharisees, and of the leaven of Herod.

Mark 12:38
And he said unto them in his doctrine, Beware of the scribes, which love to go in long clothing, and love salutations in the marketplaces,

Luke 12:1
In the mean time, when there were gathered together an innumerable multitude of people, insomuch that they trode one upon another, he began to say unto his disciples first of all, Beware ye of the leaven of the Pharisees, which is hypocrisy.

Luke 12:15
And he said unto them, Take heed, and beware of covetousness: for a man's life consisteth not in the abundance of the things which he possesseth.

Luke 20:46
Beware of the scribes, which desire to walk in long robes, and love greetings in the markets, and the highest seats in the synagogues, and the chief rooms at feasts;

Acts 13:40
Beware therefore, lest that come upon you, which is spoken of in the prophets;

Philippians 3:2
Beware of dogs, beware of evil workers, beware of the concision.

Colossians 2:8
Beware lest any man spoil you through philosophy and vain deceit, after the tradition of men, after the rudiments of the world, and not after Christ.

2 Peter 3:17
Ye therefore, beloved, seeing ye know these things before, beware lest ye also, being led away with the error of the wicked, fall from your own stedfastness.