'Take Heed' in the Bible

Keep innocency, and take heed unto the thing that is right; for that shall bring a man peace at the last.

{To the Chanter, for praising, a Psalm of David} I said, "I will take heed to my ways, that I offend not in my tongue. I will keep my mouth as it were with a bridle, while the ungodly is in my sight."

Take heed unto me, and hear me, how piteously I mourn and complain.

Take heed, ye unwise among the people: O ye fools, when will ye understand?