Here Today,Gone Tomorrow

Come now, you who say, “Today or tomorrow we will go to such and such a city, and spend a year there and engage in business and make a profit.”
Yet you do not know what your life will be like tomorrow. 
You are just a vapor that appears for a little while and then vanishes away. 
Instead, you ought to say, “If the Lord wills, we will live and also do this or that.”
James 4:13-15