13 Go to now, you that say, To day or to morrow 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 on the morrow. For what is your life? It is even a vapor, that appears for a little time, and then vanishes away.

15 For that you ought to say, If the Lord will, 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.