'Take Heed' in the Bible

And now, Jehovah, 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 on the throne of Israel, if only thy sons take heed to their way to walk in my law, as thou hast walked before me.

And he said to the judges, Take heed what ye do; for ye judge not for man, but for Jehovah, who will be with you in the matter of judgment.

neither will I any more remove the foot of Israel from out of the land that I have appointed to your fathers; if they will only take heed to do all that I commanded them through Moses, according to all the law and the statutes and the ordinances.