'Give Heed' in the Bible

But Moses said to the Lord, “Look, [my own people] the Israelites have not listened to me; so how then will Pharaoh listen to me, for I am unskilled and inept in speech?”

Be on your guard before Him, listen to and obey His voice; do not be rebellious toward Him or provoke Him, for He will not pardon your transgression, since My Name (authority) is in Him.