13 Come now, you that say, Today or tomorrow we will go into such a city, and continue there a year, and buy and sell, and get gain:14 Whereas you know not what shall be tomorrow. For what is your life? It is even a vapor, that appears for a little time, and then vanishes away.15 For you ought to say, If the Lord wills, we shall live, and do this, or that.16 But now you rejoice in your boastings: all such rejoicing is evil.17 Therefore to him that knows to do good, and does it not, to him it is sin.