'Take Heed' in the Bible

That the LORD may make good his promise which he hath promised me, saying, 'If thy children shall take heed to their ways, that they walk before me in truth, with all their hearts and with all their souls; then thou shalt never be without one sitting on the seat of Israel.'

And now LORD God of Israel, keep with thy servant David my father, that thou promisedest him, saying, 'Thou shalt not be without one or other before me, sitting on the seat of Israel: Howbeit, if thy children shall take heed to their ways 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."