13 Come now, you who say, "Today and tomorrow let us travel to this city, and let us spend a year there, and let us trade and make a profit"-
14 [you] who do not know [what will] happen tomorrow. For what is your life? For it will be a vapor that appears for a little [time], but then also disappears.
15 Instead you ought to say, "If the Lord wills, we shall live and do this or that."
16 But now you boast in your arrogance. All such boasting is evil.
17 Therefore, to him who knows to do good and does not do [it], to him it is sin.