Don't Presume Upon the Future!
We make promises, fully intending to keep them; however, if those promises depend on uncertain conditions, we are in danger of breaking our word. God warns: “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: 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” (James 4:13–14).