'Take Heed' in the Bible

And Abraham saith unto him, 'Take heed to thyself, lest thou cause my son to turn back thither;

And God cometh in unto Laban the Aramaean in a dream of the night, and saith to him, 'Take heed to thyself lest thou speak with Jacob from good unto evil.'

my hand is to God to do evil with you, but the God of your father yesternight hath spoken unto me, saying, Take heed to thyself from speaking with Jacob from good unto evil.