'Take Heed' in the Bible

And see that both thou and thy sons with thee take heed unto your priests' office, in all things that pertain unto the altar and within the veil. And see that ye serve, for I have given your priests' office unto you for a gift to do service: and the stranger that cometh nigh, shall die."

And he answered and said, Must I not take heed to speak that which the LORD hath put in my mouth?

Command the children of Israel, and say unto them, My offering, my bread for my offerings by fire of sweet odour to me, shall ye take heed to present to me at their set time.