'Take Heed' in the Bible

And Pharaoh said to him, Get thee from me, take heed to thyself, see my face no more; for in the day thou seest my face thou shalt die.

And set bounds round about the people, saying, Take heed to yourselves, not to go up unto the mountain nor touch the border of it: whatever toucheth the mountain shall certainly be put to death:

Take heed to thyself, that thou make no covenant with the inhabitants of the land to which thou shalt come, lest it be a snare in the midst of thee;