'Take Heed' in the Bible

That the LORD may continue his word which he spake concerning me, saying, If thy children take heed to their way, to walk before me in truth with all their heart and with all their soul, there shall not fail thee (said he) a man on the throne of Israel.

Therefore now, LORD God of Israel, keep with thy servant David my father that thou promisedst him, saying, There shall not fail thee a man in my sight to sit on the throne of Israel; so that thy children take heed to their way, that they walk before me as thou hast walked before me.

Then the king of Israel sent for the elders of the land and said, "Take heed I pray you and see, how this fellow goeth about mischief. For he sent unto me, for my wives and my children, and my silver and my gold: and I denied him nothing of it."

Then there came a Prophet to the king of Israel, and said to him, "Go forth and play the man: be wise and take heed what thou doest. For when the year is about, the king of Syria will come against thee again."