'Beware' in the Bible

Then Pharaoh said to him, “Get away from me! Beware, do not see my face again, for in the day you see my face you shall die!”

You shall set bounds for the people all around, saying, ‘Beware that you do not go up on the mountain or touch the border of it; whoever touches the mountain shall surely be put to death.

If thou see the ass of him that hateth thee lying under its burden, beware of leaving it to him: thou shalt certainly loosen it with him.

Beware of him, and obey his voice, provoke him not; for he will not pardon your transgressions: for my name is in him.