'Be Careful' in the Bible

"Be careful never to take my son back there!" Abraham told him.

God came to Laban the Aramean in a dream at night and said to him, “Be careful that you do not speak to Jacob, either good or bad.”

It is in my power to harm you, but the God of your father spoke to me last night, saying, ‘Be careful not to speak to Jacob, either good or bad.’