'Watch' in the Bible

“So watch yourselves carefully, since you did not see any form on the day the Lord spoke to you at Horeb from the midst of the fire,

So watch yourselves, that you do not forget the covenant of the Lord your God which He made with you, and make for yourselves a graven image in the form of anything against which the Lord your God has commanded you.

then watch yourself, that you do not forget the Lord who brought you from the land of Egypt, out of the house of slavery.