James 4:13-17 KJV

13 Go to now, ye 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 ye know not what shall be on the morrow. For what is your life? It is even a vapour, that appeareth for a little time, and then vanisheth away.
15 For that ye ought to say, If the Lord will*, we shall live, and do this, or that.
17 Therefore to him that knoweth to do good, and doeth it not, to him it is sin.