**Based upon these and many other Biblical passages, its fairly safe to draw the conclusion that God does not want us to worry needlessly.**
One of my favorite series of sermons, audio sancto, has a great description. One of the priests says (me paraphrasing here) what’s important is how you die: in a state of grace, having done your duty for your station in life. He refers to a famous Jesuit saint who was asked while playing billiards, at a regular time for recreation, what he would do were he to suddenly learn that the world was about to end. The reply was that he would continue playing billiards, with the seminarians around him understanding that he was doing as God intended him to be doing, at that moment. I’m explaining rather poorly, but really, if we try our hardest to do as Our Redeemer asks us, and we keep in mind that we’re in His hands, doing our best to be holy, faithfully attend Mass, make proper Confessions, et al, we should not worry, nor assume either the best or worst. Sorry if the explanation here is jumbly, multitasking.