Then I marked a change. The lines of tension in her face relaxed. A new quiet light came into her eye. There seemed a gentle intangible, but very sure, peace breathing about her. And I knew there was no change in him. So one day in conversation I ventured to ask about the change. And I shall always remember the gentle voice and the quiet strength with which she said, "I have given him over to my Father. And I know He will not fail me. I am still praying, of course, as ever, and I am _trusting_ for him." She had been carrying a load that she should not have been carrying. And now while the mother-heart was still concerned as much as ever, the sense of assured victory brought the change in her spirit. Sometimes worry is fretting over past mistakes; it is chafing about what we do not understand, or about plans of _ours_ that have failed. A good deal of worry comes from pride and over-sensitiveness. The roots here, it will be noticed, of all alike are down in our own failures, our own selves. And there would be cause for more worry if we had only ourselves. But we have _a Father_. A very great deal of worry is wholly due to physical causes. Overworked nerves always see things distorted. Huge phantom shapes loom up before us. Overwork always makes a sensitive spirit worry, and worry usually makes us overwork until we drop from exhaustion. When the cause is here, there are some simple _human_ helps. Some--a good bit--of _God's_ fresh air will work wonders. Even good people seem unchangeably opposed to _God's_ air, and insist on breathing old, worn-out, used-up second-hand air. God would be greatly glorified if housekeepers and church sextons were given a practical course in the use of fresh air, God's air. With that should be simple food, and simple dress, and abundant sleep, and simple standards of life. Worry is utterly _useless_. It never serves a good purpose. It brings no good results. "Which of you can by being anxious add a single span to the measure of his life?" Jesus asks in that sixth of Matthew. But much more can be said. _It brings bad results_. The revision brings out the clear, simple meaning of the Thirty-seventh Psalm, eighth verse. The old version seems a bit puzzling, "Fret not thyself in anywise to do evil." The revision reads, "Fret not thyself, it tendeth only to evil doing." The results of worrying are always bad. The judgment is impaired. One cannot think so clearly nor see so clearly. The temper is ruffled. The door is quickly opened to worse things.