'Take Heed' in the Bible

And he said to them, Take heed what ye hear: With the measure which ye give, it shall be measured to you: and to you that hear shall more be given.

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

And Jesus answering them, began to say, Take heed lest any man deceive you:

But take heed to yourselves: for they will deliver you up to councils; and in the synagogues ye will be beaten: and ye will be brought before rulers and kings for my sake, for a testimony against them.