'Take Heed' in the Bible

Now therefore, O LORD God of Israel, keep with thy servant David my father that which thou hast promised him, saying, There shall not fail thee a man in my sight to sit upon the throne of Israel; yet so that thy children take heed to their way to walk in my law, as thou hast walked before me.

And said to the judges, Take heed what ye do: for ye judge not for man, but for the LORD, who is with you in the judgment.

Wherefore now let the fear of the LORD be upon you; take heed and do it: for there is no iniquity with the LORD our God, nor respect of persons, nor taking of gifts.

Neither will I any more remove the foot of Israel from out of the land which I have appointed for your fathers; so that they will take heed to do all that I have commanded them, according to the whole law and the statutes and the ordinances by the hand of Moses.