'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; provided 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 the land which I have appointed for your fathers; provided 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.